Skita
Patent: DE461232 ;
Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 16, p. 658
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Skita
Chemische Berichte, 1925 , vol. 58, p. 2694,2696
Chem. Zentralbl., 1928 , vol. 99, # II p. 1385