Knapp, Kolja M.; Goldfuss, Bernd; Knochel, Paul
Chemistry - A European Journal, 2003 , vol. 9, # 21 p. 5259 - 5265

Donnelly,J.A.; Hoey,J.G.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1975 , p. 2364 - 2368

Knapp, Kolja M.; Goldfuss, Bernd; Knochel, Paul
Chemistry - A European Journal, 2003 , vol. 9, # 21 p. 5259 - 5265