Nasarow Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1938 , p. 704 Chem. Zentralbl., 1939 , vol. 110, # II p. 3403 Full Text Show Details Nasarow; Romanow Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1940 , p. 568 Chem.Abstr., 1941 , p. 4735