Journal article (2004) - MJP van Duin (author), NR Wiersma (author), Dirk J R Walstra (author), D.J.R. Walstra (author), D. J. Walstra (author), DJR Walstra (author), Dirk Jan Walstra (author), Dirk Jan R. Walstra (author), Dirk-Jan Walstra (author), D. J.R. Walstra (author), Dirkjan Walstra (author), L. C. van Rijn (author), L.C. van Rijn (author), Marcel J.F. Stive (author), M. J.F. Stive (author), Marcel Stive (author)