MACROMOLECULES, vol. 25, no. 26, page. 7300 - 7305, 1992-12-21
MACROMOLECULES, vol. 25, no. 25, page. 6977 - 6979, 1992-12-07
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 13, no. 3, page. 296 - 306, 1992-06-20
POLYMER, vol. 33, no. 11, page. 2412 - 2415, 1992-01