参考文献

Resinous Prod. and Chem. Co. Patent: US2339218 , 1941 ; Full Text Show Details Resinous Prod. and Chem. Co. Patent: US2280058 , 1941 ; Full Text Show Details Bruson Journal of the American Chemical Society, 1942 , vol. 64, p. 2457,2459 Journal of the American Chemical Society, 1944 , vol. 66, p. 2135