| Issue Date | Title | Author(s) | Publisher |
| 2007 | Optimization of Rational Approximations by Continued Fractions | Blomquist, Frithjof | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2008 | Optimization of the Investment Portfolio in the Conditions of Uncertainty | Zaychenko, Yurii; Esfandiyarfard, Maliheh | Institute of Information Theories and Applications FOI ITHEA |
| 2006 | Optimum Trajectory of Dynamic Input-Output Balance Model for Open Economy | Lyashenko, Igor; Lyashenko, Olena | Institute of Information Theories and Applications FOI ITHEA |
| 2010 | Organization and Security of the Audio and Video Archive for Unique Bulgarian Bells | Noev, Nikolay | Bulgarian Academy of Sciences - National Committee for Mathematics |
| 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 |
| 2008 | Outliers Resistant Learning Algorithm for Radial-basis-fuzzy-wavelet-neural Network in Stomach Acute Injury Diagnosis Tasks | Bodyanskiy, Yevgeniy; Pavlov, Oleksandr; Vynokurova, Olena | Institute of Information Theories and Applications FOI ITHEA |
| 2003 | Overdetermined Strata in General Families of Polynomials | Kostov, Vladimir | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2012 | An Overview of Modelling Bulgarian Wildland Fire Behaviour by Application of a Mathematical Game Method and WRF-Fire Models | Dobrinkova, Nina | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | Paracompact Spaces and Radon Spaces | Rodriguez-Salinas, Baltasar | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2011 | Parallel Algorithm for the Local Variations Method | Iliev, Dimitar; Iliev, Stanimir | Union of Bulgarian Mathematicians |
| 2007 | Parallel between Definition of Chess Playing Program and Definition of AI | Dobrev, Dimiter | Institute of Information Theories and Applications FOI ITHEA |
| 2008 | Parallel Class Intersection Matrices of Orthogonal Resolutions | Zhelezova, Stela | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2008 | Parallelization of Logical Inference for Confluent Rule-based System | Artemieva, Irene; Tyutyunnik, Michael | Institute of Information Theories and Applications FOI ITHEA |
| 2010 | Parameter Identification of a Fed-Batch Cultivation of S. Cerevisiae using Genetic Algorithms | Angelova, Maria; Tzonkov, Stoyan; Pencheva, Tania | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2008 | Parametric Identification and Diagnosis of Integrated Navigation Systems in Bench Test Process | Prokoshev, Ilya; Chernodarov, Alexander | Institute of Information Theories and Applications FOI ITHEA |
| 2003 | Paronyms for Accelerated Correction of Semantic Errors | Bolshakov, Igor; Gelbukh, Alexander | Institute of Information Theories and Applications FOI ITHEA |
| 2002 | Partial Quasi-Bilateral Generating Function Involving some Special Functions | Sarkar, Asit | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2007 | A Partition Metric for Clustering Features Analysis | Kinoshenko, Dmitry; Mashtalir, Vladimir; Shlyakhov, Vladislav | Institute of Information Theories and Applications FOI ITHEA |
