URN Namespace Definition Mechanisms. - Leslie Daigle; Dirk-Willem van Gulik; Renato Iannella; Patrik Fältström (RFC, 1999)

Uniform Resource Names (URN) Namespace Definition Mechanisms. - Leslie Daigle; Dirk-Willem van Gulik; Renato Iannella; Patrik Fältström (RFC, 2002)

Making Business Sense of the Semantic Web. - Zavisa Bjelogrlic; Dirk-Willem van Gulik; Alberto Reggiori (ISWC, 2003)

Building a Wireless Community Network in the Netherlands. - Rudi van Drunen; Dirk-Willem van Gulik; Jasper Koolhaas; Huub Schuurmans; Marten Vijn (USENIX ATC, FREENIX Track, 2003)

The Base45 Data Encoding. - Patrik Fältström; Fredrik Ljunggren; Dirk-Willem van Gulik (RFC, 2022)