Abstract (2008) - Guy Drijkoningen (author), G.G. Drijkoningen (author), G. Drijkoningen (author), Guy Drijkoningen (author), V v.d. Hoven (author), Karel van Dalen (author), Karel N. van Dalen (author), K. N. van Dalen (author), K.N. van Dalen (author), R Ghose (author), R. Ghose (author), Ranajit Ghose (author), J van Enst (author)

Abstract (2006) - Guy Drijkoningen (author), G.G. Drijkoningen (author), Guy Drijkoningen (author), G. Drijkoningen (author), B Dost (author), J Kooijman (author), J van Enst (author), DA Kraaijpoel (author), Deyan Draganov (author), DS Draganov (author), D. Draganov (author), D.S. Draganov (author), GJAM Steenbergen (author)