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References
- ↑ Harper, Charles A. (2001). Handbook of Materials for Product Design. McGraw-Hill. p. 6.2. ISBN 9780071354066.
- ↑ "Chemical Feats". Rubber & Plastics News. 2000-10-16. Retrieved 27 December 2017.
- ↑ Winkelmann, H. A. (1926). "The present and future of reclaimed rubber". Industrial & Engineering Chemistry. 18 (11): 1163–1168. doi:10.1021/ie50203a018.
- ↑ Winkelmann, H. A. (1952). "Static Exposure Testing of Automotive Compounds-Effect of Compounding Ingredients". Industrial & Engineering Chemistry. 44 (4): 841–850. doi:10.1021/ie50508a041.
- 1 2 "Chem. Eng. News". No. 38 (45), pp 111–129. AMERICAN CHEMICAL SOCIETY. November 7, 1960. doi:10.1021/cen-v038n045.p111.
- ↑ Gurganus, Ray. "Class of Appleton, 1910". Swift County Photos. US Gen Web Project. Retrieved 28 December 2017.
- ↑ Winkelmann, Herbert (May 15, 1919). The determination of organic compounds in low concentrations. University of Illinois.
- ↑ "DR. GEORGE BEAL, CHEMIST 84, DIES". New York Times. January 5, 1972. Retrieved 10 January 2025.
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