Coudert, Gerard; Mpassi, Michel; Guillaumet, Gerald; Selve, Claude
Synthetic Communications, 1986 , vol. 16, # 1 p. 19 - 26

Beadle, James R.; Dishong, Dennis M.; Khanna, Raj K.; Gokel, George W.
Tetrahedron, 1984 , vol. 40, # 20 p. 3935 - 3944