Journal article (2006) - I Schoemaker (author), PPW Hoefnagel (author), H.J. Simonsz (author), TJ Mastenbroek (author), CF Kolff (author), S Schutte (author), Frans C T van der Helm (author), Frans C.T. van der Helm (author), Frans van der Helm (author), F.C.T. van der Helm (author), Frans C.T. Van Der Helm (author), Frans Van Der Helm (author), F. C.T. van der Helm (author), F.C.T. Van Der Helm (author), Frans C T Van Der Helm (author), F. C.T. Van Der Helm (author), S.J. Picken (author), Stephen Picken (author), Stephen J. Picken (author), AFC Gerritsen (author), PA Wielopolski (author), H Spekreijse (author)