Chinese Science Bulletin
Chinese Science Bulletin > 1997 > 42 > 20 > 1723-1725
Chinese Science Bulletin > 1997 > 42 > 20 > 1756-1760
Chinese Science Bulletin > 1997 > 42 > 20 > 1689-1693
Chinese Science Bulletin > 1997 > 42 > 20 > 1726-1729