Dragovich, Peter S.; Prins, Thomas J.; Zhou, Ru; Fuhrman, Shella A.; Patick, Amy K.; Matthews, David A.; Ford, Clifford E.; Meador III, James W.; Ferre, Rose Ann; Worland, Stephen T.
Journal of Medicinal Chemistry, 1999 , vol. 42, # 7 p. 1203 - 1212

Fromm; Lischke
Chemische Berichte, 1900 , vol. 33, p. 1203