Doctoral thesis (2016) - . Yibole (author), Ekkes Brück (supervisor), E.H. Brück (supervisor), E. Brück (supervisor), EH Brück (supervisor), Niels van Dijk (advisor), NH van Dijk (advisor), N.H. van Dijk (advisor), N. H. van Dijk (advisor), O Tegusi (advisor), J. Aarts (advisor), TH van der Meer (advisor), F.M. Mulder (advisor), FM Mulder (advisor), F. M. Mulder (advisor), Fokko Mulder (advisor), Fokko M. Mulder (advisor), M. Lo Bue (advisor)