| Issue Date | Title | Author(s) | Publisher |
| 2012 | Resonances of two-dimensional Schrödinger operators with strong magnetic fields | Duong, Anh Tuan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2005 | Rétractes Absolus de Voisinage Algébriques | Cauty, Robert | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 22-Nov-2010 | Review and Outlooks of the Means for Visualization of Syntax Semantics and Source Code. Procedural and Object Oriented Paradigm – Differences | Hristov, Hristo | University Press "Paisii Hilendarski", Plovdiv |
| 2017 | Review of Policy Envisions and Requirements for STEM Teachers in Bulgaria | Nikolova, Nikolina; Mihnev, Pencho; Zafirova-Malcheva, Temenuzhka; Stefanova, Eliza; Stefanov, Krassen | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| Jun-2015 | Revised concavity method and applications to nonlinear dispersive equations | Kutev, N.; Kolkovska, N.; Dimova, M. | Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences |
| 2007 | Revisiting Offspring Maxima in Branching Processes | P. Yanev, George | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1-Dec-2019 | The Revival Textbooks from the Old-fashioned Collection of the Centre Community "Nadejda-1869" | Vladeva, Pavlina | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 29-May-2020 | Reviving the Thracian Heritage at the Begliktash Sanctuary: Admired, Problemed, Real | Radoynova, Diana | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 27-Jul-2021 | RG Hyperparameter Optimization Approach for Improved Indirect Prediction of Blood Glucose Levels by Boosting Ensemble Learning | Wang, Yufei; Zhang, Haiyang; An, Yongli; Ji, Zhanlin; Ganchev, Ivan | MDPI |
| 2003 | Riccati Representation for Elements in H^(-1) and Its Applications | Kappeler, Thomas; Topalov, Peter | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2012 | Riemann-Hilbert Problems with Canonical Normalization and Families of Commuting Operators | Gerdjikov, V. S. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2010 | Riemann's Hypothesis | Rusev, Peter | Union of Bulgarian Mathematicians |
| Oct-1993 | Riesz summability of multiple Hermite series | Karadzhov, G. E. | Institute of Mathematics with Computer Center at the Bulgarian Academy of Sciences |
| Oct-1993 | Riesz summability of multiple Hermite series in L^p spaces | Karadzhov, G. E. | Institute of Mathematics with Computer Center at the Bulgarian Academy of Sciences |
| 2003 | Risk Factors of Central Venous Catheter Related Infections in Intensive Care Patients | Atanasov, D.; Prodanova, K.; Terziiski, D. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2011 | Risk Measures for Classical and Perturbed Risk Processes - a Survey | T. Kolkovska, Ekaterina | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2006 | RKHS-Methods at Series Summation for Software Implementation | Chumachenko, Svetlana; Kirichenko, Ludmila | Institute of Information Theories and Applications FOI ITHEA |
| 2005 | Robot Control Using Inductive, Deductive and Case Based Reasoning | Nikitenko, Agris | Institute of Information Theories and Applications FOI ITHEA |
| 29-Jun-2021 | Robotz India - Increasing Innovation in Schools | Gopal, T. V. | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 2011 | Robust Estimation in Multitype Branching Processes Based on their Asymptotic Properties | Stoimenova, Vessela; Atanasov, Dimitar | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
