[段文杰致姜伯勤的信]：[1983].4.4 [段文杰致姜伯勤的信]：[1982].8.10 [段文杰致姜伯勤的信]：1986.1.13 [陈国灿致姜伯勤的信]：[1980].9.9 [陈国灿致姜伯勤的信]：[1982].2.1 [陈国灿致姜伯勤的信]：[1987].1.6 [蔡鸿生致姜伯勤的信]：[1978].4.16 [陈国灿致姜伯勤的信]：[1981].12.8 [陈国灿致姜伯勤的信]：[1982].1.29 [陈国灿致姜伯勤的信]：[1982].9.16