Journal of the American Chemical Society, , vol. 41, p. 1449 Journal of the American Chemical Society, , vol. 41, p. 432 Journal of the American Chemical Society, , vol. 48, p. 1406 Journal of the American Chemical Society, , vol. 45, p. 2189 DE205616 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 9, p. 1040