| Publication Type: | Book |
| Year of Publication: | 1977 |
| Authors: | Guéorguiev, V. B. |
| Number of Pages: | 182 pp. |
| Publisher: | Editions de l' Academie Bulgare des Sciences |
| Keywords: | KAPE inc |
| Publication Type: | Book |
| Year of Publication: | 1977 |
| Authors: | Guéorguiev, V. B. |
| Number of Pages: | 182 pp. |
| Publisher: | Editions de l' Academie Bulgare des Sciences |
| Keywords: | KAPE inc |