参考文献

Fries; Schuermann Chemische Berichte, 1919 , vol. 52, p. 2178 Full Text Show Details Bayer and Co. Patent: DE204772 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 9, p. 702 Full Text Show Details Fries Chemische Berichte, 1912 , vol. 45, p. 2967 Anm.