Soerensen; Soerensen Acta Chemica Scandinavica (1947-1973), 1948 , vol. 2, p. 169 Acta Chemica Scandinavica (1947-1973), 1949 , vol. 3, p. 939 Full Text Show Details Oldham; Ubbelohde Journal of the Chemical Society, 1939 , p. 201 Transactions of the Faraday Society, 1939 , vol. 35, p. 335