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REFEREED JOURNAL ARTICLES

Schehl, B., Leukel, J., & Sugumaran, V. (2019). Understanding differentiated internet use in older adults: A study of informational, social, and instrumental online activities. Computers in Human Behavior, 97, 222-230. [Elsevier] [PDF: Authors' version]

Leukel, J., & Sugumaran, V. (2018). How product representation influences the understanding of supply chain process models. Enterprise Information Systems, 12(10), 1285-1307. [Taylor & Francis] [PDF: Authors' version] [Supplement@SSRN]

Widmer, T., & Leukel, J. (2018). Electronic service matching: Failure of incentive compatibility in Vickrey auctions. Operations Research Letters, 46(3), 318-323. [Elsevier] [PDF: Authors' version]

Widmer, T., & Leukel, J. (2016). Efficiency of electronic service allocation with privately known quality. European Journal of Operational Research, 255(3), 856-868. [Elsevier] [PDF: Authors' version]

Scheuermann, A., & Leukel, J. (2014). Supply chain management ontology from an ontology engineering perspective. Computers in Industry, 65(6), 913-923. [Elsevier] [PDF: Authors' version]

Scheuermann, A., & Leukel, J. (2014). Task ontology for supply chain planning – A literature review. International Journal of Computer Integrated Manufacturing, 27(8), 719-732. [Taylor & Francis] [PDF: Authors' version]

Leukel, J., & Sugumaran, V. (2013). Formal correctness of supply chain design. Decision Support Systems, 56, 288-299. [Elsevier] [PDF: Authors' version]

Leukel, J., & Kirn, S. (2011). A framework for studying cloud value systems. it – information technology, 53(4), 195-201. [Oldenbourg] [PDF@RG]

Leukel, J., Kirn, S., & Schlegel, T. (2011). Supply chain as a service: A cloud perspective on supply chain systems. IEEE Systems Journal, 5(1), 16-27. [IEEE Digital Library]

Leukel, J., & Sugumaran, V. (2009). Towards a semiotic metrics suite for product ontology evaluation. International Journal of Intelligent Information Technologies, 5(4), 1-15. [IGI] [PDF: Authors' version]

Hepp, M., Leukel, J., & Schmitz, V. (2007). A quantitative analysis of product categorization standards: Content, coverage, and maintenance of eCl@ss, UNSPSC, eOTD, and the RosettaNet Technical Dictionary. Knowledge and Information Systems, 13(1), 77-114. [SpringerLink] [PDF@RG]

Leukel, J., & Maniatopoulos, G. (2005). A comparative analysis of product classification in public vs. private e-procurement. The Electronic Journal of e-Government, 3(4), 201-212. [PDF@RG]

Schmitz, V. & Leukel, J. (2005). Findings and recommendations from a pan-european research project: Comparative analysis of e-catalog standards. International Journal of IT Standards and Standardization Research, 3(2), 51-65. [IGI]

REFEREED PROCEEDINGS

Leukel, J., & Hubl, M. (2018). The role of application domain knowledge in understanding supply chain process models. In Proceedings of the 39th International Conference on Information Systems (ICIS 2018). San Francisco, CA, USA. [AIS eLibrary] [PDF@RG] [Supplement@SSRN]

Klein, A., Riekert, M., Kirilov, L., & Leukel, J. (2018). Increasing the explanatory power of investor sentiment analysis for commodities in online media. In W. Abramowicz, & A. Paschke (Eds.), Proceedings of the 21st International Conference on Business Information Systems (BIS 2018) (pp. 321-332). LNBIP 320, Berlin: Springer. [SpringerLink] [PDF@RG]

Leukel, J., Schehl, B., Wallrafen, S., & Hubl, M. (2017). Impact of IT use by older adults on their outdoor activities. In Proceedings of the 38th International Conference on Information Systems (ICIS 2017). Seoul, Korea. [AIS eLibrary] [PDF@RG]

Leukel, J., Sugumaran, V., & Hubl, M. (2016). The role of application domain knowledge in using OWL DL diagrams: A study of inference and problem-solving tasks. In Proceedings of the 37th International Conference on Information Systems (ICIS 2016). Dublin, Ireland. [AIS eLibrary] [PDF@RG] [Supplement@SSRN]

Karaenke, P., Leukel, J., & Sugumaran, V. (2016). Using domain ontology for service replacement tasks: An empirical evaluation. In Proceedings of the 37th International Conference on Information Systems (ICIS 2016). Dublin, Ireland. [AIS eLibrary] [PDF@RG] [Supplement@SSRN]

Riekert, M., Leukel, J., & Klein, A. (2016). Online media sentiment: Understanding machine learning-based classifiers. In Proceedings of the 24th European Conference on Information Systems (ECIS 2016). Istanbul, Turkey. [AIS eLibrary] [PDF@RG]

Leukel, J., Mueller, M., & Sugumaran, V. (2014). The state of design science research within the BISE community: An empirical investigation. In Proceedings of the 35th International Conference on Information Systems (ICIS 2014). Auckland, New Zealand. [AIS eLibrary] [PDF@RG] [Appendix@SSRN]

Karaenke, P., Leukel, J., & Sugumaran, V. (2013). Ontology-based QoS aggregation for composite web services. In Proceedings of the 11th International Conference on Wirtschaftsinformatik (WI 2013) (pp. 1343-1357). Leipzig, Germany. [AIS eLibrary] [PDF@RG]

Vaupel, S., & Leukel, J. (2013). Modellgestützte Analyse und Optimierung der Energieeffizienz betrieblicher Informations- und Kommunikationstechnik. In Proceedings of the 11th International Conference on Wirtschaftsinformatik (WI 2013) (pp. 1131-1145). Leipzig, Germany. [AIS eLibrary] [PDF@RG]

Leukel, J., Schuele, M., Scheuermann, A., Ressel, D., & Kessler, W. (2011). Cooperative semantic document management. In W. Abramowicz (Ed.), Proceedings of the 14th International Conference on Business Information Systems (BIS 2011) (pp. 254-265). LNBIP 87, Berlin: Springer. [SpringerLink]

Leukel, J., Karaenke, P., Jacob, A., Kirn, S., & Klein, A. (2011). Individualization of goods and services – Towards a logistics knowledge infrastructure for agile supply chains. In Proceedings of the 2011 AAAI Spring Symposium on AI for Business Agility (pp. 36-49). Stanford, CA, USA. [AAAI Publications] [PDF@RG]

Leukel, J., & Kirn, S. (2011). A service-oriented approach to freight routing in intermodal transport systems. In Proceedings of the 10th International Conference on Wirtschaftsinformatik (WI 2011) (pp. 292-301). Zurich, Switzerland. [AIS eLibrary] [PDF@RG]

Karaenke, P., & Leukel, J. (2010). Towards ontology-based QoS aggregation for composite web services. In K.-P. Fähnrich, & B. Franczyk (Eds.), Proceedings INFORMATIK 2010 (pp. 120-125). LNI 175, Bonn: GI. [ELibM] [PDF@RG]

Mujaj, Y., Leukel, J., & Kirn, S. (2008). Reverse pricing in supply chains: An assessment of sourcing strategies. In Proceedings of the 10th IEEE International Conference on E-Commerce Technology (CEC 2008) (pp. 68-75). Washington, D.C., USA. [IEEE Digital Library] [PDF@RG]

Leukel, J., & Kirn, S. (2008). A supply chain management approach to logistics ontologies in information systems. In W. Abramowicz, & D. Fensel (Eds.), Proceedings of the 11th International Conference on Business Information Systems (BIS 2008) (pp. 95-105). LNBIP 7, Berlin: Springer. [SpringerLink] [PDF@RG]

Weiß, D., Leukel, J., & Kirn, S. (2008). Concepts for modeling hybrid products in the construction industry. In W. Abramowicz, & D. Fensel (Eds.), Proceedings of the 11th International Conference on Business Information Systems (BIS 2008) (pp. 154-164). LNBIP 7, Berlin: Springer. [SpringerLink] [PDF@RG]

Weiß, D., Leukel, J., & Kirn, S. (2008). A method for aligning business process modeling and software requirements engineering. In Proceedings of the PRIMIUM Subconference at the Multikonferenz Wirtschaftsinformatik (MKWI 2008). CEUR Workshop Proceedings 328. [CEUR] [PDF@RG]

Leukel, J., & Sugumaran, V. (2007). Evaluating product ontologies in e-commerce: A semiotic approach. In Proceedings of the 6th Workshop on e-Business (pp. 240-249). Montreal, Canada. [PDF@RG]

Kaack, J., Leukel, J., & Kirn, S. (2007). Representing mechatronic products in interorganizational information systems. In L. D. Xu, A. Min Tjoa, & S. S. Chaudry (Eds.), Proceedings of the IFIP TC8 WG8.9 International Conference on Research and Practical Issues of Enterprise Information Systems (CONFENIS 2007) (pp. 949-949). IFIP AICT 255, New York: Springer. [SpringerLink] [PDF@RG]

Schmitz, V., Leukel, J., & Hepp, M. (2007). A modeling approach for e-business standards based on XML schema annotations. In Proceedings of the IADIS International Conference WWW / Internet 2007 (pp. 101-108). Vila Real, Portugal. [PDF@RG]

Mujaj, Y., & Leukel, J. (2007). An agent-based reverse pricing model for reducing bullwhip effect in supply chains. In Proceedings of the 13th Americas Conference on Information Systems (AMCIS 2007). Keystone, CO, USA. [AIS eLibrary] [PDF@RG]

Mujaj, Y., Leukel, J., & Kirn, S. (2007). A reverse pricing model for multi-tier supply chains. In Proceedings of the 9th IEEE International Conference on E-Commerce Technology (CEC 2007) (pp. 331-338). Tokyo, Japan. [IEEE Digital Library] [PDF@RG]

Leukel, J., Hepp, M., Schmitz, V., & Tribowski, C. (2006). Ontologizing B2B message specifications: Experiences from adopting the PLIB ontology for commercial product data. In Proceedings of the IEEE International Conference on e-Business Engineering (ICEBE 2006) (pp. 146-153). Shanghai, China. [IEEE Digital Library] [PDF@RG]

Leukel, J., Schmitz, V., & Hepp, M. (2006). A critical assessment of ISO 13584 adoption by B2B data exchange specifications. In Proceedings of the 13th ISPE International Conference on Concurrent Engineering (pp. 362-370). FAIA 143, Amsterdam: IOS Press. [IOS Press] [PDF@RG]

Leukel, J. (2006). Maintaining property libraries in product classification schemes. In Proceedings of the 8th International Conference on Enterprise Information Systems (ICEIS 2006). Paphos, Cyprus. [PDF@RG]

Hepp, M., Leukel, J., & Schmitz, V. (2005). A quantitative analysis of eCl@ss, UNSPSC, eOTD, and RNTD: Content, coverage, and maintenance. In Proceedings of the IEEE International Conference on e-Business Engineering (ICEBE 2005) (pp. 572-581). Beijing, China. [IEEE Digital Library] [PDF@RG]

Schmitz, V., Leukel, J., & Hepp, M. (2005). Integrierte Dokumentation und Spezifikation von E-Business-Standards mit XML Schema-Annotationen. In Proceedings of the Berliner XML Tage 2005 (pp. 179-190). Berlin, Germany. [PDF@RG]

Leukel, J., & Maniatopoulos, G. (2005). Product classification and description in public e-procurement: Are there lessons to be learned from private e-procurement? In Proceedings of the 5th European Conference on e-Government (ECEG 2005) (pp. 247-256). Antwerp, Belgium. [PDF@RG]

Hepp, M., Leukel, J., & Schmitz, V. (2005). Content metrics for products and services categorization standards. In Proceedings of the 2005 IEEE International Conference on e-Technology, e-Commerce and e-Service (EEE-05) (pp. 740-745). Hong Kong, China. [IEEE Digital Library] [PDF@RG]

Schmitz, V., Leukel, J., & Dorloff, F.-D. (2005). Do e-catalog standards support advanced processes in B2B e-commerce? Findings from the CEN/ISSS Workshop eCAT. In Proceedings of the 38th Hawaii International Conference on System Sciences (HICSS-38). Waikoloa, HI, USA. [IEEE Digital Library] [PDF@RG]

Leukel, J. (2004). Standardization of product ontologies in B2B relationships – On the role of ISO 13584. In Proceedings of the 10th Americas Conference on Information Systems (AMCIS 2004) (pp. 4084-4091). New York, NY, USA. [AIS eLibrary] [PDF@RG]

Leukel, J. (2004). Automating product classification: The impact of standardization. In Proceedings of the IADIS International Conference e-Society 2004 (pp. 147-154). Avila, Spain. [PDF@RG]

Leukel, J., Schmitz, V., & Dorloff, F.-D. (2003). B2B e-procurement beyond MRO? In Proceedings of the 6th International Conference on Electronic Commerce Research (ICECR-6) (pp. 493-500). Dallas, TX, USA. [PDF@RG]

Schmitz, V., & Leukel, J. (2003). CEN/ISSS Workshop eCAT – A step towards multilingual electronic product catalogues. In Proceedings of the 10th ISPE International Conference on Concurrent Engineering (pp. 321-327). Madeira, Portugal. [PDF@RG]

Schmitz, V., Leukel, J., & Dorloff, F.-D. (2003). Does B2B data exchange tap the full potential of XML schema languages? In Proceedings of the 16th Bled Electronic Commerce Conference (pp. 172-182). Bled, Slovenia. [AIS eLibrary] [PDF@RG]

Schmitz, V., Leukel, J., & Dorloff, F.-D. (2003). XML data modeling concepts in B2B catalog standards. In Proceedings of the IADIS International Conference e-Society 2003 (pp. 227-234). Lisboa, Portugal. [PDF@RG]

Leukel, J., Schmitz, V., & Dorloff, F.-D. (2002). Exchange of catalog data in B2B relationships – Analysis and improvement. In Proceedings of the IADIS International Conference WWW/Internet 2002 (pp. 403-410). Lisboa, Portugal. [PDF@RG]

Leukel, J., Schmitz, V., & Dorloff, F.-D. (2002). Coordination and exchange of XML catalog data in B2B. In Proceedings of the 5th International Conference on Electronic Commerce Research (ICECR-5). Montreal, Canada. [PDF@RG]

Leukel, J., Schmitz, V., & Dorloff, F.-D. (2002). Referenzmodell für den Austausch von Produktklassifikationssystemen im E-Business. In P. Loos, & N. Gronau (Eds.) E-Business – Integration industrieller ERP-Architekturen. Multikonferenz Wirtschaftsinformatik 2002 (pp. 85-97). Göttingen: Cuvillier.

Leukel, J., Schmitz, V., & Dorloff, F.-D. (2002). A modeling approach for product classification systems. In: Proceedings of the 13th International Workshop on Database and Expert Systems Applications (DEXA 2002) (pp. 868-874). Aix-en-Provence, France. [IEEE Digital Library]

Leukel, J., Schmitz, V., & Dorloff, F.-D. (2002). Modeling and exchange of product classification systems using XML. In Proceedings of the 4th IEEE International Workshop on Advanced Issues of E-Commerce and Web-based Information Systems (WECWIS 2002) (pp. 242-244). Newport Beach, CA, USA. [IEEE Digital Library]

Kelkar, O., Leukel, J., & Schmitz, V. (2002). Price modeling in standards for electronic product catalogs based on XML. In Proceedings of the 11th International World Wide Web Conference (WWW2002) (pp. 366-375). Honolulu, HI, USA. [ACM Digital Library] [PDF@RG]

Kelkar, O., Leukel, J., & Schmitz, V. (2002). Towards extended price models in XML standards for electronic product catalogs. In Proceedings of the 4th International Conference on Enterprise Information Systems (ICEIS 2002) (pp. 937-945). Ciudad Real, Spain. [PDF@RG]

Leukel, J., & Schmitz, V. (2002). Modellierung von Preisinformationen in elektronischen Produktkatalogen. In M. Glinz, & G. Müller-Luschnat (Eds.), Modellierung 2002 (pp. 171-181). LNI 12, Bonn: GI. [ELibM]

NON-REFEREED CONTRIBUTIONS TO JOURNALS

Leukel, J., & Scheuermann, A. (2014). Cloud Logistics ist mehr als Logistiksoftware aus der Cloud. Wirtschaftsinformatik & Management, 6(1), 38-45. [SpringerLink]

Leukel, J., & Kirn, S. (2008). Aufwandsschätzung für die Nutzung von Produktklassifikationen. Industrie Management – Zeitschrift für industrielle Geschäftsprozesse, 25(3), 57-60.

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2004). Konverter für XML-basierte Geschäftsdokumente. WISU – Das Wirtschaftsstudium, 33(3), 341-348.

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2004). Datentransformation bei XML-basierten Geschäftsdokumenten. WISU – Das Wirtschaftsstudium, 33(1), 87-94.

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2002). Produktmodelle in elektronischen Katalogen. WISU – Das Wirtschaftsstudium, 31(12), 1557-1563.

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2002). Betriebliches Katalogdaten-Management. WISU – Das Wirtschaftsstudium, 31(3), 369-377.

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2001). Standards für den Austausch elektronischer Produktkataloge. WISU – Das Wirtschaftsstudium, 30(11), 1528-1536.

NON-REFEREED CONTRIBUTIONS TO EDITED VOLUMES

Leukel, J., Fernandes, J., Heidebrecht, A., & Schillings, S. (2012). Agency theory in e-healthcare and telemedicine: A literature study. In N. Wickramasinghe, R. K. Bali, S. Kirn, & R. Suomi (Eds.), Critical issues for the development of sustainable e-health solutions (pp. 313-330). New York: Springer. [SpringerLink] [PDF@RG]

Leukel, J., & Kirn, S. (2011). Toward semantics-based service composition in transport logistics. In V. Sugumaran, &. J. A. Gulla (Eds.), Applied semantic technologies: Using semantics in intelligent information processing (pp. 379-394). New York: Auerbach. [Taylor & Francis] [PDF@RG]

Leukel, J., & Sugumaran, V. (2011). Semiotic evaluation of product ontologies. In V. Sugumaran (Ed.), Intelligent, adaptive and reasoning technologies (pp. 64-79). Hershey: IGI Global. [IGI]

Leukel, J., & Sugumaran, V. (2010). Towards a semiotic metrics suite for product ontology evaluation. In B. Nag (Ed.), Intelligent systems in operations: Methods, models and applications in the supply chain (pp. 309-323). Hershey: IGI Global. [IGI] [PDF@RG]

Leukel, J., & Kirn, S. (2008). Semantic modeling of logistics services. In S. Kirn (Ed.), Individualization Engineering (pp. 63-78). Göttingen: Cuvillier.

Weiß, D., Leukel, J., & Kirn, S. (2008). Hybride Produktdatenmodelle. In S. Kirn (Ed.), Individualization Engineering (pp. 79-89). Göttingen: Cuvillier.

Kirn, S., Anhalt, C., Bieser, T., Jacob, A., Klein, A., & Leukel, J. (2008). Individualisierung von Sachgütern und Dienstleistungen durch Adaptivität von Wertschöpfungssystemen in Raum, Zeit und Ökonomie. In S. Kirn (Ed.), Individualization Engineering (pp. 3-60). Göttingen: Cuvillier.

Leukel, J. (2008). Controlling property growth in product classification schemes: A data management approach. In Y. Manolopoulos, J. Filipe, P. Constantopoulos, & J. Cordeiro (Eds.), ICEIS 2006 Revised Selected Papers (pp. 363-374). LNBIP 3, Berlin: Springer. [SpringerLink] [PDF@RG]

Kaack, J., Leukel, J., & Kirn, S. (2007). Lebenszyklusmanagement für mechatronische Produkte in der Automotive Supply Chain. In W. Dangelmaier, M. Aufenanger, & B. Klöpper (Eds.), Kundenindividuelle Produktion und lieferzeitoptimierte Unternehmensnetze, 9. Paderborner Frühjahrstagung, Paderborn: Fraunhofer-ALB.

Schmitz, V., Leukel, J., & Kelkar, O. (2004). XML-based data exchange of product model data in e-procurement and e-sales: The case of BMEcat 2.0. In Proceedings of the International Conference on Economic, Technical and Organisational Aspects of Product Configuration Systems (PETO 2004) (pp. 97-107). Copenhagen, Denmark. [PDF@RG]

Beul, M., Bittscheidt, C., Leukel, J., & Spies, T. (2003). Behandlung von Informationsdefiziten und -verlusten bei der Transformation von XML-Geschäftsdaten. In W. Dangelmaier, T. Gajewski, & C. Kösters (Eds.), Innovationen im E-Business, 5. Paderborner Frühjahrstagung (pp. 159-168). Paderborn: Fraunhofer-ALB.

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2003). Handelbarkeit von Dienstleistungen auf elektronischen Märkten. In W. Dangelmaier, T. Gajewski, & C. Kösters (Eds.), Innovationen im E-Business, 5. Paderborner Frühjahrstagung (pp. 429-437). Paderborn: Fraunhofer-ALB.

Kelkar, O., Leukel, J., & Schmitz, V. (2003). Towards extended price models in XML standards for electronic product catalogs. In M. Piattini, J. Filipe, &. J. Braz (Eds.), Enterprise information systems IV (pp. 251-259). Dordrecht: Kluwer Academic. [ACM Digital Library]

Dorloff, F.-D., Leukel, J., & Schmitz, V. (2002). Konfigurierbare Produkte in XML-Katalogstandards. In W. Dangelmaier, A. Emmrich, & D. Kaschula (Eds.), Modelle im E-Business, 4. Paderborner Frühjahrstagung (pp. 699-712). Paderborn: Fraunhofer-ALB. [PDF@RG]

BOOKS

Leukel, J. (2004). Katalogdatenmanagement im B2B E-Commerce. Lohmar-Köln: Josef Eul.

EDITED BOOKS

Dorloff, F.-D., Leukel, J., & Schmitz, V. (Eds.). (2004). E-Business – Standardisierung und Integration. Tagungsband zur Multikonferenz Wirtschaftsinformatik 2004. Göttingen: Cuvillier.

TECHNICAL SPECIFICATIONS

Schmitz, V., Leukel, J., & Kelkar, O. (2005). Specification BMEcat 2005. Frankfurt am Main: BME e.V. [PDF@RG]