PSP.J. SchoenmakersFollowUsage metrics Co-workers & collaboratorsAvA.C. van AstenA.C. van AstenRKRuben F. Kranenburganalytical chemist - Amsterdam, The NetherlandsRuben F. KranenburgCKC. KukurinC. KukurinHJH-G. JanssenH-G. JanssenAGA.R. Garcia-CicourelA.R. Garcia-Cicourel