Bajgrowicz, J. A.; Hallaoui, A. El; Jacquier, R.; Pigiere, Ch.; Viallefont, Ph.
Tetrahedron, 1985 , vol. 41, # 10 p. 1833 - 1845

Bernardini, A.; Hallaoui, A. El; Jacquier, R.; Pigiere, Ch.; Viallefont, Ph.; Bajgrowicz, J.
Tetrahedron Letters, 1983 , vol. 24, # 35 p. 3717 - 3720