Doctoral thesis (2011) - X. Ma (author) , G. Zhang (promotor) , Kasper Jansen (copromotor) , J. Li (copromotor) , JG Korvink (copromotor) , C.I.M. Beenakker (copromotor) , H Frémont (copromotor) , O van der Sluis (copromotor) , P.M. Sarro (copromotor)