Arnold; Meakins Transactions of the Faraday Society, 1955 , vol. 51, p. 1667,1668 Full Text Show Details Trillat; Barbezat J.Recherches Centre nation., 1950 , vol. 3, p. 288 Full Text Show Details Perron J.Recherches Centre nation., 1950 , vol. 3, p. 186,196,198