"Chemistry, physical organic." . . "Cycloadditie." . . "Natuurlijke stoffen." . . "Cycloaddities." . . "Wittig, Réaction de." . . "Aminozuren." . . "Organische Chemie." . . "Wittig-Reaktion." . . . . . . . . . "Wittig chemistry dedicated to Professor Dr.G.Wittig" . "Wittig chemistry : dedicated to professor Dr.G.Wittig" . "Wittig chemistry : dedicated to Professor Dr. G. Wittig" . . "Aufsatzsammlung" . . . . . . . . . . . . "Wittig Chemistry Dedicated to Professor Dr. G. Wittig" . . . . . . "Wittig Chemistry Dedicated to Professor DR. G. Wittig"@en . . "Wittig chemistry. Dedicated to professor Dr.G.Wittig. With contributions by H.J.Bestmann et al" . . . . . . "Wittig chemistry : dedicated to professor dr. g. wittig" . . . . . "Wittig chemistry dedicated to Professor Dr. G. Wittig" . "Wittig chemistry dedicated to Professor Dr. G. Wittig"@en . . . . . . "Stereoselectiviteit." . . "Wittigreacties." . . "Aufsatzsammlung." . . "Physikalische Chemie." . . "Chimie organique physique." . .