JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, vol. 37, no. 19, page. 2806 - 2814, 1999-10-01
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol. 37, no. 7, page. 937 - 957, 1999-04-01
POLYMER, vol. 40, no. 1, page. 125 - 130, 1999-01