Nikonorov,K.V. et al.
J. Gen. Chem. USSR (Engl. Transl.), 1974 , vol. 44, # 6 p. 1267 - 1272,1245 - 1250

Garegg, Per J.; Regberg, Tor; Stawinski, Jacek; Stroemberg, Roger
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 1269 - 1274

Garegg, Per J.; Regberg, Tor; Stawinski, Jacek; Stroemberg, Roger
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 1269 - 1274