Gate, E. Nicholas; Meek, Michelle A.; Schwalbe, Carl H.; Stevens, Malcolm F. G.; Threadgill, Michael D.
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1985 , p. 251 - 256
Ivanova,I.A. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1965 , p. 2143 - 2149
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1965 , p. 2179 - 2187