Journal article (2012) - A. Kostenko (author), H. Sharma (author), E.G. Dere (author), A King (author), W Ludwig (author), W. van Oel (author), S.E. Offerman (author), S Stallinga (author), L.J. Van Vliet (author)

Journal article (2004) - S Stallinga (author), GW 't Hooft (author), J.J.M. Braat (author)