by Amano, Young, Heathcock, Clayton H
Published in Canadian journal of chemistry (01.02.1972)

by Wolff, Manfred E, Feldmann, David, Catsoulacos, Panayotis, Funder, John W, Hancock, Curtis, Amano, Young, Edelman, Isidore S
Published in Biochemistry (Easton) (22.04.1975)