| Issue Date | Title | Author(s) | Publisher |
| 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 |
| 2010 | On Y. Nievergelt's Inversion Formula for the Radon Transform | Ournycheva, E.; Rubin, B. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2007 | Open Source Information Technologies Approach for Moddeling of Ankle-Foot Orthosis | Milusheva, Slavyana; Karastanev, Stefan; Toshev, Yuli | Institute of Information Theories and Applications FOI ITHEA |
| 2007 | Operating Model of Knowledge Quantum Engineering for Decision-Making in Conditions of Indeterminacy | Molodykh, Liudmyla; Sirodzha, Igor | Institute of Information Theories and Applications FOI ITHEA |
| 2006 | Operational Calculi for the Euler Operator | Dimovski, Ivan; Skórnik, Krystyna | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2009 | Operational Methods in the Environment of a Computer Algebra System | Spiridonova, Margarita | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2004 | Operational Rules for a Mixed Operator of the Erdélyi-Kober Type | Luchko, Yury | 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 |
| 2011 | Optimal Choice of a Firm in Conducting Auction | Baeva, Silvia; Nedeva, Cvetana | Union of Bulgarian Mathematicians |
| 2006 | Optimal Control of a Second Order Parabolic Heat Equation | Farag, Mahmoud; Al-Manthari, Mainouna | Institute of Information Theories and Applications FOI ITHEA |
| 2012 | Optimal Control of Heterogeneous Systems | Tsachev, Tsvetomir | Union of Bulgarian Mathematicians |
| 2009 | Optimal Decision Rules in Logical Recognition Models | Gupal, Anatol; Ryazanov, Vladimir | Institute of Information Theories and Applications FOI ITHEA |
| 2004 | An Optimal Distributed Algorithm for All-Pairs Shortest-Path | Kanchi, Saroja; Vineyard, David | Institute of Information Theories and Applications FOI ITHEA |
| 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 |
| 22-Nov-2010 | Optimal Resource Deployment in an Infostation-Based Network | Dimitrov, Ivan; Stoyanov, Stanimir; Popchev, Ivan | University Press "Paisii Hilendarski", Plovdiv |
| 2005 | Optimization of ATM Telecommunication Networks | Hulianytskyi, Leonid; Baklan, Andrii | Institute of Information Theories and Applications FOI ITHEA |
| 1995 | Optimization of Discrete-Time, Stochastic Systems | Papageorgiou, Nikolaos | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2003 | Optimization of Gabor Wavelets for Face Recognition | Murygin, Kirill | Institute of Information Theories and Applications FOI ITHEA |
