Derrick, Jan; Lewis, John W.; Moynihan, Humphrey A.; Broadbear, Jillian; Woods, James H.
Journal of Pharmacy and Pharmacology, 1996 , vol. 48, # 2 p. 192 - 196

Sayre; Larson; Fries; Takemori; Portoghese
Journal of Medicinal Chemistry, 1983 , vol. 26, # 9 p. 1229 - 1235