Micheel F., 1946: Giftige Eiweißstoffe. Tierische, pflanzliche und bakterielle Gifte. 5 pp. (in German). Die Naturwissenschaften 8: 239-243.
 
VAR 9
Moore F. G., Dains F. B., 1928: I. Synthesis of Tiazane derivatives. II. Reactivity of various alkyl bromides with diphenyl thiourea. 11 pp. The Kansas University Science Bulletin 29(7): 633-643.