Kindler Archiv der Pharmazie (Weinheim, Germany), 1931 , vol. 269, p. 70,76 Full Text Show Details Hahn; Rumpf Chemische Berichte, 1938 , vol. 71, p. 2141,2147 Full Text Show Details Hahn; Stiehl; Schulz Chemische Berichte, 1939 , vol. 72, p. 1291,1296