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Tetrahedron, 1989 , vol. 45, # 19 p. 6211 - 6220

Biedrzycki, Marek; Bie, Dick A. de; Plas, Henk C. van der
Tetrahedron, 1989 , vol. 45, # 19 p. 6211 - 6220

Dzhemilev, U. M.; Selimov, F. A.; Khafizov, V. R.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, p. 1478 - 1483
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 7 p. 1628 - 1634