参考文献

Jakubowitsch; Rudenko; Merkulowa Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 1948 , vol. 21, p. 153 Chem.Abstr., 1949 , p. 564 Full Text Show Details Am.Cyanamid Co. Patent: US2383137 , 1939 ;