1. Natta, Pasquon, and Giachetti, Angew. Chem. 69, 213 (1957).ANCEAD0044-8249
2. Natta, Pasquon, and Giachetti, Makromol. Chem. 24, 258 (1957).MACEAK0025-116X
3. G. Natta, paper presented at 133d meeting of the American Chemical Society, April 14–18, 1958.
4. L. Gold, J. Chem. Phys. 28, 91 (1958).JCPSA60021-9606
5. K. Pearson, Tables of the Incomplete Gamma Function (Cambridge University Press, New York, 1946).