Cardinale, G.; Laan, J.A.M.; Steen, D. van der; Ward, J.P.
Tetrahedron, 1985 , vol. 41, # 24 p. 6051 - 6054

Tolstikov, G. A.; Miftakhov, M. S.; Valeev, F. A.; Akhmetvaleev, R. R.; Khalilov, L. M.; Panasenko, A. A:
Journal of Organic Chemistry USSR (English Translation), 1985 , vol. 21, # 1 p. 65 - 74
Zhurnal Organicheskoi Khimii, 1985 , vol. 21, # 1 p. 72 - 82