| Issue Date | Title | Author(s) | Publisher |
| 2001 | On some Results Related to Köthe's Conjecture | Agata, Smoktunowicz | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2001 | On the 3-Colouring Vertex Folkman Number F(2,2,4) | Nenov, Nedyalko | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | On The Brill-noether Theory of Spanned Vector Bundles on Smooth Curves | Ballico, E. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2005 | On the Convergence of (0,1,2) Interpolation | Muneer, Y. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1997 | On the Difference of 4-Gonal Linear Systems on some Curves | Ohbuchi, Akira | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2000 | On the Exponential Bound of the Cutoff Resolvent | Georgi, Vodev | Institute of Mathematics and Informatics |
| 2003 | On the Extinction Probability for Bisexual Branching Processes in Varying Environments | Molina, Manuel; Mota, Manuel; Ramos, Alfonso | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 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 |