Cashman, John R.; MacDonald, Mary; Ghirmai, Senait; Okolotowicz, Karl J.; Sergienko, Eduard; Brown, Brock; Garcia, Xochella; Zhai, Dayong; Dahl, Russell; Reed, John C.
Bioorganic and Medicinal Chemistry Letters, 2010 , vol. 20, # 22 p. 6560 - 6564

Sanna; Macciotta
Gazzetta Chimica Italiana, 1927 , vol. 57, p. 773