参考文献

Gottlieb Journal of the American Pharmaceutical Association (1912-1977), 1947 , vol. 36, p. 379,381 Full Text Show Details Reed and Carnrick Patent: US2520052 , 1946 ; Full Text Show Details Reed and Carnrick Patent: US2500855 , 1946 ; Full Text Show Details Niederl et al. Journal of the American Chemical Society, 1948 , vol. 70, p. 508,510 Full Text Show Details Reed and Carnrick Patent: US2419516 , 1944 ;