| Title | Paper | Date | Type | ||
|---|---|---|---|---|---|
| 176 |
 |
Vernal Express | 1981-04-09 | unclassified | |
| 177 |
 |
Vernal Express | 1981-04-30 | unclassified | |
| 178 |
 |
Vernal Express | 1981-05-07 | unclassified | |
| 179 |
 |
Vernal Express | 1981-05-14 | unclassified | |
| 180 |
 |
Vernal Express | 1981-05-21 | unclassified | |
| 181 |
 |
Vernal Express | 1981-05-28 | unclassified | |
| 182 |
 |
Vernal Express | 1981-06-04 | unclassified | |
| 183 |
 |
Vernal Express | 1981-06-25 | unclassified | |
| 184 |
 |
Vernal Express | 1981-07-02 | unclassified | |
| 185 |
 |
Vernal Express | 1981-07-09 | unclassified | |
| 186 |
 |
Vernal Express | 1981-07-30 | unclassified | |
| 187 |
 |
Vernal Express | 1981-08-06 | unclassified | |
| 188 |
 |
Vernal Express | 1981-08-13 | unclassified | |
| 189 |
 |
Vernal Express | 1981-08-27 | unclassified | |
| 190 |
 |
Vernal Express | 1981-09-24 | unclassified | |
| 191 |
 |
Vernal Express | 1981-10-01 | unclassified | |
| 192 |
 |
Vernal Express | 1981-10-08 | unclassified | |
| 193 |
 |
Vernal Express | 1981-10-15 | unclassified | |
| 194 |
 |
Vernal Express | 1981-10-22 | unclassified | |
| 195 |
 |
Vernal Express | 1981-10-29 | unclassified | |
| 196 |
 |
Vernal Express | 1981-11-05 | unclassified | |
| 197 |
 |
Vernal Express | 1981-11-12 | unclassified | |
| 198 |
 |
Vernal Express | 1981-11-19 | unclassified | |
| 199 |
 |
Vernal Express | 1981-11-19 | unclassified | |
| 200 |
 |
Vernal Express | 1981-11-26 | unclassified |