MACROMOLECULAR RAPID COMMUNICATIONS, vol. 19, no. 9, page. 499 - 504, 1998-09
MACROMOLECULES, vol. 31, no. 12, page. 4045 - 4048, 1998-06-16
MACROMOLECULES, vol. 31, no. 2, page. 336 - 343, 1998-01-27