| Publication Type: | Journal Article |
| Year of Publication: | 1961 |
| Authors: | J. S. Ryland |
| Journal: | Sarsia |
| Volume: | 1 |
| Start Page: | 31 |
| Pagination: | 31-38 |
| Date Published: | 03/1961 |
| Publication Type: | Journal Article |
| Year of Publication: | 1961 |
| Authors: | J. S. Ryland |
| Journal: | Sarsia |
| Volume: | 1 |
| Start Page: | 31 |
| Pagination: | 31-38 |
| Date Published: | 03/1961 |