| Issue Date | Title | Author(s) | Publisher |
| 2004 | On the Factorization of the Poincaré Polynomial: A Survey | Akyıldız, Ersan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | On the Hyperbolicity Domain of the Polynomial x^n + a1x^(n-1) + 1/4+ an | Kostov, Vladimir | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | On the Isoenergetical Non-Degeneracy of the Problem of two Centers of Gravitation | Dragnev, Dragomir | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | On the KAM - Theory Conditions for the Kirchhoff Top | Christov, Ognyan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | On the Maximum of a Branching Process Conditioned on the Total Progeny | Kerbashev, Tzvetozar | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | On the sense preserving mappings in the Helm topology in the plane | Pyrih, Pavel | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2002 | On the Stabilization of the Wave Equation by the Boundary | Cardoso, Fernando; Vodev, Georgi | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | On the Structure of Spatial Branching Processes | Matthes, Klaus; Nawrotzki, Kurt; Siegmund-Schultze, Rainer | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2003 | On the Transformations of Symplectic Expansions and the Respective Bäcklund Transformation for the KDV Equation | Khristov, E. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | On the Uniform Decay of the Local Energy | Vodev, Georgi | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | On Typical Compact Convex Sets in Hilbert Spaces | De Blasi, F. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1995 | On Uniformly Convex and Uniformly Kadec-Klee Renomings | Lancien, Gilles | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2003 | The Operators Aγ = γA + -γA for a Class of Nondissipative Operators A with a Limit of the Corresponding Correlation Function | Borisova, Galina | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1995 | Operators Factoring through Banach Lattices and Ideal Norms | Reisner, Shlomo | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2004 | Optimality Conditions for D.C. Vector Optimization Problems under D.C. Constraints | Gadhi, N.; Metrane, A. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1995 | Optimization of Discrete-Time, Stochastic Systems | Papageorgiou, Nikolaos | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2004 | Oscillation Criteria for First Order Delay Differential Equations | Elabbasy, E.; Hassan, T. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | Oscillation Theorems for Perturbed Second Order Nonlinear Differential Equations with Damping | Elabbasy, E. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | Oscillation Theorems for Second Order Sublinear Ordinary Differential Equations | Elabbasy, E. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2003 | Overdetermined Strata in General Families of Polynomials | Kostov, Vladimir | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
