| 076 A study of the properties and structure variations of water systems under the stimulus of outside influences P Gramatikov, A Antonov, M Gramatikova Fresenius' Journal of Analytical Chemistry 343 (1), 134-135, 1992 | 24 | 1992 |
| Energy and environmental challenges to security S Stec, B Baraj Springer, 2009 | 18 | 2009 |
| Energy Efficiency and Energy Management Handbook I Iliev, N Kaloyanov, P Gramatikov, V Kamburova, A Terziev, I Palov, ... Bulgaria Energy Efficiency for Competitive Industry Financing Facility …, 2012 | 8 | 2012 |
| Science Education: Models and Networking of Student Research Training Under 21 P Csermely, K Korlevic, K Sulyok IOS Press, 2007 | 8 | 2007 |
| Decision support for natural disasters and intentional threats to water security T Illangasekare, K Mahutova, JJ Barich Springer Science & Business Media, 2009 | 7 | 2009 |
| Bulgarian energetics management and environmental security P Gramatikov Energy and Environmental Challenges to Security, 211-224, 2009 | 7 | 2009 |
| Energy Efficiency and Energy Management Handbook, Bulgaria Energy Efficiency for Competitive Industry Financing Facility (BEECIFF): Project Preparation, Capacity Building and … I Iliev, N Kaloyanov, P Gramatikov, V Kamburova, A Terziev, I Palov, ... Energy and Tourism (“MoEET”), 2012 | 5 | 2012 |
| Energy potential of agricultural crops in Kosovo N Sahiti, A Sfishta, P Gramatikov | 4 | 2015 |
| Engaging the Public to Fight the Consequences of Terrorism and Disasters I Apostol, J Mamasakhlisi, D Subotta IOS Press, 2015 | 4 | 2015 |
| Bulgarian Education’s Reform and Strategy for Diagnostics of Gifted Children P Csermely Science Education: Models and Networking of Student Research Training Under …, 2007 | 4 | 2007 |
| Non-equilibrium processes in the atmosphere, water, and reactions with calcium carbonate in the environment I Ignatov, M Iliev, P Gramatikov, A Ignatov, M Angelcheva, I Angushev, ... Journal of Chemical Technology and Metallurgy 58 (6), 1100-1106, 2023 | 3 | 2023 |
| https://ejce. cherkasgu. press MT Iliev, F Huether, I Ignatov, PS Gramatikov European Journal of Contemporary Education 12 (4), 4, 2023 | 3 | 2023 |
| Landfill gas from solid urban waste-an opportunity evaluation P Gramatikov, V Kovachev, M Gramatikova | 3 | 2004 |
| Optimisation of disaster forecasting and prevention measures in the context of human and social dynamics I Apostol IOS Press, 2009 | 2 | 2009 |
| Regional Stability and Nuclear Energetics safety's management in Bulgaria PS GRAMATIKOV energy 45, 2, 2005 | 2 | 2005 |
| https://ejce. cherkasgu. press I Ignatov, MT Iliev, PS Gramatikov European Journal of Contemporary Education 12 (3), 862, 2023 | 1 | 2023 |
| Civil-Military Collaboration in Complex Emergencies P Gramatikov Engaging the Public to Fight the Consequences of Terrorism and Disasters 120 …, 2015 | 1 | 2015 |
| The Work with Gifted Children in Bulgaria–Relations Between Polices, Theories and Practices V Sharlanova Педагогически форум, 62-68, 2015 | 1 | 2015 |
| Assesment of opportunities for landfill gas utilisation in Bulgaria S Gramatikov, I Iliev, S Andreev, I Hristoskov | 1 | 2011 |
| Biomass energy utilisation-ecological and economic aspects P Gramatikov | 1 | 2009 |
