Allen; Gates Journal of the American Chemical Society, 1942 , vol. 64, p. 2439,2441 Full Text Show Details Allen; Spanagel Journal of the American Chemical Society, 1933 , vol. 55, p. 3773,3777 Full Text Show Details Allen; Rudoff Canadian Journal of Research, Section B: Chemical Sciences, 1937 , vol. 15, p. 321,329