Pharmaceutical Chemistry Journal, , # 7 p. 388 - 389
Khimiko-Farmatsevticheskii Zhurnal, , # 7 p. 40 - 42

Quilico; Fusco
Gazzetta Chimica Italiana, 1937 , vol. 67, p. 589,599

Gerold; Heinisch
Pharmazie, 1981 , vol. 36, # 5 p. 347 - 348

Hintermann, Samuel; Chiesi, Michele; von Krosigk, Ulrike; Mathe, Daniele; Felber, Richard; Hengerer, Bastian
Bioorganic and Medicinal Chemistry Letters, 2007 , vol. 17, # 1 p. 193 - 196