Using Karel J Collaboratively to Facilitate Object-Oriented Learning. - Richard Borge; Annita Fjuk; Arne-Kristian Groven (ICALT, 2004)

Teaching OOP: experimental studies. - Richard Borge (ITiCSE, 2004)

Learning object-oriented programming. - Jens Kaasbøll; Ola Berge; Richard Borge; Annita Fjuk; Christian Holmboe; Terje Samuelsen (PPIG, 2004)