by Andersen, Raymond, Buechi, George, Kobbe, Brunhilde, Demain, Arnold L
Published in Journal of organic chemistry (01.01.1977)

by Buechi, George, Luk, Kin Chun, Kobbe, Brunhilde, Townsend, James M
Published in Journal of organic chemistry (01.01.1977)

by Springer, J.P, Buchi, G, Kobbe, B, Demain, A.L, Clardy, J
Published in Tetrahedron letters (1977)