| Paper | Date | Page | Article Title | Type | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Helper Journal | 1938-06-02 | 1 | page | |
| 2 |
 |
Helper Journal | 1946-06-06 | 8 | page | |
| 3 |
 |
Helper Journal | 1949-06-30 | 4 | page | |
| 4 |
 |
Helper Journal | 1950-06-01 | 3 | page | |
| 5 |
 |
Helper Journal | 1953-06-11 | 7 | page | |
| 6 |
 |
Helper Journal | 1955-06-02 | 2 | page |