Stach, Hans; Hesse, Manfred
Helvetica Chimica Acta, 1987 , vol. 70, p. 315 - 320

Cardinale, G.; Laan, J. A. M.; Russel, S. W.; Ward, J. P.
Recueil: Journal of the Royal Netherlands Chemical Society, 1982 , vol. 101, # 6 p. 199 - 202