Wagle, Shivananda; Adhikari, Airody Vasudeva; Kumari, Nalilu Suchetha
European Journal of Medicinal Chemistry, 2009 , vol. 44, # 3 p. 1135 - 1143

Makino, Kenzi; Sakata, Gozyo; Morimoto, Katsushi
Heterocycles, 1985 , vol. 23, # 8 p. 2025 - 2034

Lippmann, E.; Tober, E.
Journal fuer Praktische Chemie (Leipzig), 1982 , vol. 324, # 2 p. 329 - 334