Knunjanz; Fokin Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1957 , p. 1439,1450;engl.Ausg.S.1462,1471 Full Text Show Details Birchall et al Journal of the Chemical Society, 1962 , p. 3021,3027 Proceedings of the Chemical Society, London, 1959 , p. 467