| Title | Paper | Date | Type | ||
|---|---|---|---|---|---|
| 151 |
 |
Vernal Express | 1980-10-30 | unclassified | |
| 152 |
 |
Vernal Express | 1980-11-06 | unclassified | |
| 153 |
 |
Vernal Express | 1980-11-13 | unclassified | |
| 154 |
 |
Vernal Express | 1980-11-13 | unclassified | |
| 155 |
 |
Vernal Express | 1980-11-13 | unclassified | |
| 156 |
 |
Vernal Express | 1980-11-20 | unclassified | |
| 157 |
 |
Vernal Express | 1980-11-27 | unclassified | |
| 158 |
 |
Vernal Express | 1980-12-04 | unclassified | |
| 159 |
 |
Vernal Express | 1980-12-11 | unclassified | |
| 160 |
 |
Vernal Express | 1980-12-18 | unclassified | |
| 161 |
 |
Vernal Express | 1980-12-18 | unclassified | |
| 162 |
 |
Vernal Express | 1980-12-25 | unclassified | |
| 163 |
 |
Vernal Express | 1981-01-01 | unclassified | |
| 164 |
 |
Vernal Express | 1981-01-08 | unclassified | |
| 165 |
 |
Vernal Express | 1981-01-15 | unclassified | |
| 166 |
 |
Vernal Express | 1981-01-15 | unclassified | |
| 167 |
 |
Vernal Express | 1981-01-25 | unclassified | |
| 168 |
 |
Vernal Express | 1981-02-12 | unclassified | |
| 169 |
 |
Vernal Express | 1981-02-19 | unclassified | |
| 170 |
 |
Vernal Express | 1981-02-26 | unclassified | |
| 171 |
 |
Vernal Express | 1981-03-05 | unclassified | |
| 172 |
 |
Vernal Express | 1981-03-05 | unclassified | |
| 173 |
 |
Vernal Express | 1981-03-12 | unclassified | |
| 174 |
 |
Vernal Express | 1981-03-19 | unclassified | |
| 175 |
 |
Vernal Express | 1981-03-26 | unclassified |