共 34 条
[21]
1981, ENERGY DAILY, V9, P1
[22]
1981, 195 HAND, P10
[23]
1981, 29 WEEKL COMP PRES D, V17, P768
[24]
1981, INOFFIZIELLE DTSCH U, V26, P591
[25]
1981, INSIDE ENERGY 0911, P5
[26]
1981, NUCLEAR IND, V28, P3
[27]
1981, WASHINGTON POST 0725, pA7
[28]
1981, WASHINGTON POST 1011, pA7
[29]
1981, BUSINESS WEEK 0831, P102
[30]
1981, NY TIMES 1009, pA1