| Issue Date | Title | Author(s) | Publisher |
| 1997 | On the Difference of 4-Gonal Linear Systems on some Curves | Ohbuchi, Akira | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1966 | On the Dirichlet problem for a class of elliptic equations degenerating in the interior of the region into parabolic equations and into equations of the first order | Raichinov, Ivan | Bulgarian Academy of Sciences |
| 2004 | On the Equality of Sharp and Germ - Fields for Gaussian Processes and Fields | Robeva, Raina S.; Pitt, Loren D. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2007 | On the Equivalence of the Riemann-Liouville and the Caputo Fractional Order Derivatives in Modeling of Linear Viscoelastic Materials | Bagley, Ron | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2007 | On the Error-Correcting Performance of some Binary and Ternary Linear Codes | Baicheva, Tsonka | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2005 | On the Error-Free Computation of Fast Cosine Transform | Dimitrov, Vassil; Wahid, Khan | Institute of Information Theories and Applications FOI ITHEA |
| 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 |
| 2008 | On the Feasibility of Steering Swallowable Microsystem Capsules Using Computer-Aided Magnetic Levitation | Wu, Billy; Mintchev, Martin | Institute of Information Theories and Applications FOI ITHEA |
| 2008 | On the Generalized Associated Legendre Functions | Virchenko, Nina; Rumiantseva, Olena | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2006 | On the Generalized Confluent Hypergeometric Function and Its Application | Virchenko, Nina | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2011 | On the generalized Kato spectrum | Benharrat, Mohammed; Messirdi, Bekkai | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2008 | On the Generation of Heronian Triangles | Kurz, Sascha | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2012 | On the Gibson Bounds over Finite Fields | V. Budrevich, Mikhail; E. Guterman, Alexander | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2012 | On the Holomorphic Extension of Solutions of Elliptic Pseudodifferential Equations | Cappiello, Marco; Nicola, Fabio | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1989 | On the Homogeneous-Polynomially Convex Hull of Unions Of Balls | Khudajberganov, Gulmirza | Institute of Mathematics and Informatics at the 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 |
| 1973 | On the hypercomplexes of linear autodual subspaces of the biplanar space of hyperbolic type | Gančev, Georgi | Bulgarian Academy of Sciences |
| Aug-1996 | On the Inequality of I. Schur | Milev, Lozko; Nikolov, Geno | Institute of Mathematics with Computer Center at the Bulgarian Academy of Sciences |
