Modal Logics for Conceptual Graphs. - Harmen van den Berg (ICCS, 1993)

Modal Logics for Conceptual Graphs III. - Harmen van den Berg (ECAI, 1994)

Architectural design support for business process and business network engineering. - Henry M. Franken; René Bal; Harmen van den Berg; Wil Janssen; Henny de Vos (Int. J. Serv. Technol. Manag., 2000)

Visualising business processes. - Paul Oude Luttighuis; Marc M. Lankhorst; Rob G. van de Wetering; René Bal; Harmen van den Berg (Comput. Lang., 2001)