Berthelot; Vaccher; Flouquet; Luyckx; Brunet; Boulanger; Frippiat; Vercauteren; Debaert; Evrard; Durant European Journal of Medicinal Chemistry, 1991, vol. 26, # 4 p. 395 - 402 doi: 10.1016/0223-5234(91)90100-2