| Issue Date | Title | Author(s) | Publisher |
| 1996 | A Periodic Lotka-Volterra System | Tsvetkov, D. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1966 | Periodic oscillations of a non-autonomous quasilinear system with n degrees of freedom in the presence of resonance frequencies | Bainov, Droumi | Bulgarian Academy of Sciences |
| 1970 | Periodic solutions of a weakly nonlinear autonomic system differential equations by critical case | Bradistilov, Georgi; Boyadžiev, Georgi | Bulgarian Academy of Sciences |
| 1969 | Periodische Lösungen Eines Autonomen Systems bei Ganzzahligem Verhältnis der Wwurzeln der Charakteristischen Gleichung | Bradistilov, Georgi; Bojadžiev, Georgi; Lubich, Vladimir | Bulgarian Academy of Sciences |
| 2008 | Personalized Question-Answering Mobile System | Johnston, Lee; Lovitskii, Vladimir; Price, Ian; Thrasher, Michael; Traynor, David | Institute of Information Theories and Applications FOI ITHEA |
| 2012 | Personal Work Space and Content Analysis Functionality in a Cultural Heritage Digital Library | Paneva-Marinova, Desislava | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 30-Jun-2022 | Perspective of Education – Value-Oriented Rethinking | Lozanova, Lilia | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 1996 | Perturbations of Critical Values in Nonsmooth Critical Point Theory | Degiovanni, M.; Lancelotti, S. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1995 | Perturbations of Systems Describing the Motion of a Particle in Central Fields | Christov, Ognyan; Dragnev, Dragomir | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1999 | The Perturbed Generalized Tikhonov's Algorithm | Alexandre, P. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 1996 | A Perturbed Iterative Method for a General Class of Variational Inequalities | Adly, Samir | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2000 | Perturbed Proximal Point Algorithm with Nonquadratic Kernel | Brohe, M.; Tossings, P. | Institute of Mathematics and Informatics |
| 2012 | Photographic Plate Libraries at European Astronomical Observatories | Tsvetkova, Katya; Tsvetkov, Milcho; Kounchev, Ognyan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 10-Aug-2020 | A Photoplethysmography Signals Registering Device | Cheshmedzhiev, Krasimir | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 7-Dec-2021 | Phytonymic Lexics and Its Reflection in the Linguistic Picture of the World (Based on the Russian and Bulgarian Languages) | Angelova, Anna | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 1-Dec-2019 | Phytonymic Symbolism in Bulgarian and Russian Folk Art | Petrova, Stefka; Petrov, Marian | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 10-Aug-2022 | The Pictorial Work of Prof. Ivan Kanchev | Alagenski, Milen | Institute of Mathematics and Informatics – Bulgarian Academy of Sciences |
| 2006 | Piecewise Convex Curves and their Integral Representation | Nedelcheva, M. D. | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2013 | Plaintext Recovery in DES-like Cryptosystems Based on S-boxes with Embedded Parity Check | Angelova, Vesela; Borissov, Yuri | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 2003 | A Planning Model with Resources in e-Learning | Totkov, George; Somova, Elena | Institute of Information Theories and Applications FOI ITHEA |
