Dey; Sankaranarayanan Journal of the Indian Chemical Society, 1931 , vol. 8, p. 817,822 Full Text Show Details Dey; Sankaran Proceedings of the National Institute of Sciences of India, 1940 , vol. 6, p. 173,185, 186 Archiv der Pharmazie (Weinheim, Germany), 1942 , vol. 280, p. 1,14, 15