| Issue Date | Title | Author(s) | Publisher |
| 1973 | The characteristics of certain orthogonal nets | Markov, G. | Bulgarian Academy of Sciences |
| 1973 | Connection on some surfaces embedded in the projective space with affinor structure | Visnevsky, V. V.; Pavlov, E. V. | Bulgarian Academy of Sciences |
| 1962 | Considérations géometriques sur quelques processus non-stationnaires de la hydrodynamique | Ghéorghiev., Gh | Bulgarian Academy of Sciences |
| 1970 | Crofton's formulas in the theory of line congruences in the Euclidean space E^n | StaniIоw, G.; Sulаnкe, R. | Bulgarian Academy of Sciences |
| 1960 | Formes tensorielles des équations de mouvement des chânes et mécanismes | Mangeron, D.; Drăgan, C. | Bulgarian Academy of Sciences |
| 1973 | Four-dimensional surfaces in five-dimensional Euclidean space that carry a completely holonomic 4-web of lines of curvature | Bilčev, S. I.; Dočev, D. T. | Bulgarian Academy of Sciences |
| 1973 | A generalization of the Riemann curvature, and some applications | Stanilov, Grozjo | Bulgarian Academy of Sciences |
| 1973 | Infinitesimal deformations of the cylindroids in case of cylindrical sleeve constraints | Mihailovskii, V. I.; Hineva, S. T. | Bulgarian Academy of Sciences |
| 1962 | Interprétations géométriques de certains invariants différentiels de systémes de lignes droites dépendant d'un paramètre dans la géométrie à deux axes | Stanilov, G. | Bulgarian Academy of Sciences |
| 1954 | Isometrie zwischen zwei mongeschen Flächen | Petkantschin, B. | Bulgarian Academy of Sciences |
| 1974 | On a relation between connection in twodimensional Riemannian space and the inner connection of a tritissue | Stefanov, Stefan | Bulgarian Academy of Sciences |
| 1973 | On Cs-curves in a subspace of a Riemannian space | Rastogi, S. C. | Bulgarian Academy of Sciences |
| 1973 | On the hypercomplexes of linear autodual subspaces of the biplanar space of hyperbolic type | Gančev, Georgi | Bulgarian Academy of Sciences |
| 1974 | On the (n+1)-webs of multidimensional surfaces | Goldberg, V. | Bulgarian Academy of Sciences |
| 1954 | Regelscharen isotroper Geraden im elliptischen Raum | Petkantschin, B. | Bulgarian Academy of Sciences |
| 1959 | Sur la déformation projective des surfaces développables | Čech, Eduard | Bulgarian Academy of Sciences |
| 1959 | Sur la géométrie différentielle des champs de vecteurs et quelques applications | Ghéorghiev, Gh. | Bulgarian Academy of Sciences |
| 1970 | Sur la méthode du repère mobile | Gheorghiev, Ghеorghi | Bulgarian Academy of Sciences |
| 1959 | Sur les complexes de droites à courbure constante | Ghéorghiev, Gh. | Bulgarian Academy of Sciences |
| 1970 | Three-dimensional surfaces in four-dimensional Euclidean space that support a totally holonomic 3-web of lines of curvature | Bilčev, Svetoslav | Bulgarian Academy of Sciences |
