1. Silicosis in a chromite mine and its prophylaxis (in Russian);Andrievskaya, Z.M.; Mislavskaya, M.M.;Gig,1949
2. Bronchial asthma caused by chromium trioxide;Broch, C.;Nord. Med,1949
3. Health of Workers in Chromate Producing Industry. U. S;Gafafer, W.M.;Public Health Service publication,1953
4. The Bushveld Igneous Complex of the Central Transvaal. Union of South Africa. Department of Mines and Industries;Hall, A.L.;Geological Survey memoir,1932
5. Chromatlungenkrebs und Chromatstaublunge. Eine klinische, pathologisch-anatomische und gewerbehygienische Studie;Letterer, E.; Neidhardt, K.; Klett, H.;Arch. Gewerbepath. Gewerbehyg,1944