1. Anderson D A and Freeman E S 1961J. Polym. Sci.
54 253
2. Anderson H C 1962SPE Trans.
2 202–6 1962Chem. Abst.
57 11365h
3. Broido A 1969J. Polym. Sci.
A2 1761
4. Chatterjee P K 1965J. Polym. Sci.
A3 4253
5. Colson G A Ch. (6)11, 22; Cf. Beilstein Organische Chemii Band-V System number 467, Page 364