MACROMOLECULES, vol. 25, no. 26, page. 7300 - 7305, 1992-12-21
MACROMOLECULES, vol. 25, no. 25, page. 6977 - 6979, 1992-12-07
POLYMER, vol. 33, no. 11, page. 2412 - 2415, 1992-01