2019, Article in monograph or in proceedings (ECHA Conference: 1st Thematic Conference of the European Council for High Ability: Creativity Research & Innovation in Gifted Education: Social, Individual, and Educational Perspective)
2003, Part of book or chapter of book (Mönks, F.J.; Wagner, H. (ed.), Development of human potential: Investment into our future. Proceedings 8th Conference European Council for High Ability (ECHA), pp. 112-115)