Authors: Roos de Boer
DOI: http://scholar.google.com/scholar_url?url=https://dspace.library.uu.nl/bitstream/handle/1874/397729/thesis_finalver_Roos_de_Boer.pdf%3Fsequence%3D1&hl=en&sa=X&d=12431860966154160472&scisig=AAGBfm2ABe8eq8093rWOhNG_VseSr7Nr0A&nossl=1&oi=scholaralrt&hist=gGrFCJUAAAAJ:3881664554097131974:AAGBfm0XiDEQmJLScEcQ2P7aTCy7NaxLCw&html=