| Title | Paper | Date | Type | ||
|---|---|---|---|---|---|
| 1 |
 |
Vernal Express | 1969-10-02 | unclassified | |
| 2 |
 |
Vernal Express | 1969-10-09 | unclassified | |
| 3 |
 |
Vernal Express | 1969-10-16 | unclassified | |
| 4 |
 |
Vernal Express | 1969-10-23 | unclassified | |
| 5 |
 |
Vernal Express | 1969-10-30 | unclassified | |
| 6 |
 |
Vernal Express | 1973-10-04 | unclassified | |
| 7 |
 |
Vernal Express | 1973-10-11 | unclassified | |
| 8 |
 |
Vernal Express | 1973-10-18 | unclassified | |
| 9 |
 |
Vernal Express | 1973-10-25 | unclassified | |
| 10 |
 |
Vernal Express | 1977-10-06 | unclassified | |
| 11 |
 |
Vernal Express | 1977-10-13 | unclassified | |
| 12 |
 |
Vernal Express | 1977-10-20 | unclassified | |
| 13 |
 |
Vernal Express | 1977-10-27 | unclassified | |
| 14 |
 |
Vernal Express | 1979-10-04 | unclassified | |
| 15 |
 |
Vernal Express | 1979-10-11 | unclassified | |
| 16 |
 |
Vernal Express | 1979-10-18 | unclassified | |
| 17 |
 |
Vernal Express | 1979-10-25 | unclassified | |
| 18 |
 |
Vernal Express | 1980-10-02 | unclassified | |
| 19 |
 |
Vernal Express | 1980-10-09 | unclassified | |
| 20 |
 |
Vernal Express | 1980-10-16 | unclassified | |
| 21 |
 |
Vernal Express | 1980-10-23 | unclassified | |
| 22 |
 |
Vernal Express | 1980-10-30 | unclassified | |
| 23 |
 |
Vernal Express | 1981-10-01 | unclassified | |
| 24 |
 |
Vernal Express | 1981-10-08 | unclassified | |
| 25 |
 |
Vernal Express | 1981-10-15 | unclassified |