Geer, W. C.; Bedford, C. W. (January 24, 1925). "The History of Organic Accelerators in the Rubber Industry". Industrial and Engineering Chemistry. 17 (4): 393–396. doi:10.1021/ie50184a021.
Oenslager, George (February 1933). "Organic Accelerators". Industrial and Engineering Chemistry. 25 (2): 232–237. doi:10.1021/ie50278a031.
Trumbull, H. L. (1933). "Accomplishments of the Medalist". Ind. Eng. Chem. 25 (2): 230–232. doi:10.1021/ie50278a030.
