Kricheldorf Hans Rytger L-aminoacid-N-Carboxy anhydrides and related heterocycles Kricheldorf Hans Rytger - Berlin Springer-Verlag 1987 - 213p. cm. Standard No.: 45203 Source: Textual Subjects--Topical Terms: Amino acid anhydrides PeptidesChemistry Dewey Class. No.: E92Z, M7