The Direct Use of Already Existing User Manuals for Computer Aided Instruction and Information Retrieval with the Aid of Hypermedia. - Karel Lemmen; Wendela J. Gillissen; Kasper L. Boon (ICCAL, 1990)

The MEMA-model: towards a new approach for Method Engineering. - Teade Punter; Karel Lemmen (Inf. Softw. Technol., 1996)

Classifying information systems education by method engineering. - Karel Lemmen; Fred Mulder; Sjaak Brinkkemper (Informatics in Higher Education, 1997)

An empirical study on the educational effects of a course in Method Engineering for Information systems. - Karel Lemmen; Fred Mulder; Sjaak Brinkkemper (Educ. Inf. Technol., 1999)

Information Systems Curricula Evaluated by a Method Engineering Framework. - Karel Lemmen; Fred Mulder; Sjaak Brinkkemper (Requir. Eng., 1999)

An innovative university program on management and ICT. - Karel Lemmen; Fred Mulder; Wim Smit (SIGCSE, 2000)

Variety in Views of University Curriculum Schemes for Informatics/Computing/ICT. - Fred Mulder; Karel Lemmen; Maarten van Veen (Informatics Curricula and Teaching Methods, 2002)

What is lacking in curriculum schemes for computing/informatics? - Maarten van Veen; Fred Mulder; Karel Lemmen (ITiCSE, 2004)

Modular Behaviour Modelling of Service Providing Business Processes. - Ella E. Roubtsova; Lex Wedemeijer; Karel Lemmen; Ashley T. McNeile (ICEIS (3), 2009)