Doctoral thesis (2011) - Niels van Oort (author) , Piet H.L. Bovy (promotor) , Rob van Nes (copromotor) , I.A. Hansen (copromotor) , LH Immers (copromotor) , NHM Wilson (copromotor) , BR Hellinga (copromotor) , GA Kaper (copromotor) , B. van van Arem (copromotor)