参考文献

Guha; Roy Journal of the Indian Institute of Science, Section A, 1940 , vol. 23, p. 208,210 Full Text Show Details Schmidt Patent: DE543429 , 1931 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 18, p. 580 Full Text Show Details Imoto J. Soc. chem. Ind. Japan Spl., 1938 , vol. 41, p. 314,209,210