| Publication Type: | Journal Article |
| Year of Publication: | 1961 |
| Authors: | C. Nielsen, Ryland J. S. |
| Journal: | Sarsia |
| Volume: | 1 |
| Start Page: | 39 |
| Pagination: | 39-45 |
| Date Published: | 1961 |
| Publication Type: | Journal Article |
| Year of Publication: | 1961 |
| Authors: | C. Nielsen, Ryland J. S. |
| Journal: | Sarsia |
| Volume: | 1 |
| Start Page: | 39 |
| Pagination: | 39-45 |
| Date Published: | 1961 |