1. Visiting Associate Professor from Zhejiang University, Hangzhou, People's Republic of China.
2. Z. Shen and M. F. Farona, Polymer Bull., in press.
3. Z. Shen and M. F. Farona, J. Polym Sci., Polym. Chem. Ed., submitted for publication.
4. Z. Shen, M. Yang, M. Shi, and Y. Cai, J. Polym. Sci., Polym. Lett. Ed., 20, 411 (1982), Proceedings of IUPAC 28th Macromolecular Symposium, p. 431; Scientia Sinica, No. 2 (1983).
5. Z. Shen, W. Chen, H. Zhao, and F. Wang, ?Collection of Synthetic Rubber Catalyzed by Rare-Earth Catalysts,? Science Press, Beijing, 1980, p. 381.