MACROMOLECULES, vol. 23, no. 19, page. 4317 - 4321, 1990-09-17
MACROMOLECULES, vol. 23, no. 20, page. 4387 - 4391, 1990-10-01
MACROMOLECULES, vol. 21, no. 6, page. 1802 - 1806, 1988-06