Doctoral thesis (2008) - I Matijosyte (author), I Matijosyte (author), RA Sheldon (promotor), Roger A. Sheldon (promotor), Roger Arthur Sheldon (promotor), Roger Sheldon (promotor), R.A. Sheldon (promotor), I.W.C.E. Arends (promotor), Isabel W.C.E. Arends (promotor), IWCE Arends (promotor), I. W.C.E. Arends (promotor), Isabel Arends (promotor), S. de Vries (promotor), S. De Vries (promotor), Simon de Vries (promotor), Simon De Vries (promotor), S de Vries (promotor), S De Vries (promotor)