2007, Part of book or chapter of book (Scruggs, T.E.; Mastropieri, M.A. (ed.), Advances in Learning and Behavioral Disabilities (Vol. 20: International Perspectives), pp. 1-19)
2012, Article in monograph or in proceedings (Zanten, M. van (ed.), Opbrengstgericht onderwijs: -rekenen! -wiskunde? Verslag van de 30e Panama-conferentie gehouden op 18, 19 & 20 januari 2012 te Noordwijkerhout, pp. 83-95)
2012, Part of book or chapter of book (Breznitz, Z. (ed.), Reading, writing, mathematics and the developing brain: Listening to many voices, pp. 295-313)
Schweitzer, K.; Herrmann, T.; Janzen, G.; Katz, S.
1998, Article in monograph or in proceedings (Freksa, C.; Habel, C.; Sender, K.F. (ed.), Spatial Cognition, An Interdisciplinary Approach to Representing and Processing Spatial Knowledge, pp. 19-38)