Synthetic aspects of biologically active cyclic peptides-gramicidin S and tyrocidines / Nobuo Izumiya ... (et al.) - Tokyo : Kodansha, 1979. - xii, 166 pages : illustrations ; 24 cm. - Kodansha scientific books . 'A Halsted Press book' ISBN: 0470268638 Subjects--Topical Terms: Peptides--Synthesis.Gramicidins.Tyrocidines.Structure--activity relationship (Pharmacology).