Nazir, Mamona; Sultan, Misbah; Riaz, Naheed; Hafeez, Maria; Hussain, Hidayat; Ahmed, Ishtiaq; Schulz, Barbara; Draeger, Siegfried; Jabbar, Abdul; Krohn, Karsten; Ashraf, Muhammad; Saleem, Muhammad
Journal of Asian Natural Products Research, 2011 , vol. 13, # 11 p. 1056 - 1060