ANGEWANDTE MAKROMOLEKULARE CHEMIE, vol. 192, page. 133 - 144, 1991-11
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, vol. 33, no. 2, page. 327 - 329, 1995-01-30
EUROPEAN POLYMER JOURNAL, vol. 30, no. 3, page. 353 - 360, 1994-03
POLYMER INTERNATIONAL, vol. 31, no. 4, page. 329 - 333, 1993-01