Journal article (2014) - M.J. Beekwilder (author), Harmen M. Rossum (author), J.G. Daran (author), F.W. Koopman (author), F Sonntag (author), M Buchhaupt (author), J Schrader (author), RD Hall (author), Dirk Bosch (author), J.T. Pronk (author), A.J.A. van Maris (author)