Izvestiya Sibirskogo Otdeleniya Akademii Nauk SSSR, Seriya Khimicheskikh Nauk, , p. 501 - 503 Izvestiya Sibirskogo Otdeleniya Akademii Nauk SSSR, Seriya Khimicheskikh Nauk, , # 5 p. 30 - 33 C: MVol.D3, 2.2.8.5.5, page 93 - 93