Fernholz
Chemische Berichte, 1934 , vol. 67, p. 2027,2029
Full Text Show Details
Wintersteiner; Allen
Journal of Biological Chemistry, 1934 , vol. 107, p. 321,332
Full Text Show Details
Butenandt; Schmidt
Chemische Berichte, 1934 , vol. 67, p. 2092,2094

Rare Chem. Inc.
Patent: US2259109 , 1938 ;

Full Text Show Details
C.F. Boehringer and Soehne
Patent: FR844850 , 1938 ;