Bachelor thesis (2013) - J.Y. Boersma (author) , R.G.A. Bolder (author) , J.E. Haverkamp (author) , A.I. van Hengel (author) , M. Michielsen (author) , F. Pohl (author) , L. Roelen (author) , E.C. Seibel (author) , C.Y.Y. Yeung (author) , G.G. Drijkoningen (mentor) , Erwin Mooij (mentor)