| Which is more toxic? Evaluation of the short-term toxic effects of chlorpyrifos and cypermethrin on selected biomarkers in common carp (Cyprinus carpio, Linnaeus 1758) E Georgieva, V Yancheva, S Stoyanova, I Velcheva, I Iliev, T Vasileva, ... Toxics 9 (6), 125, 2021 | 34 | 2021 |
| Effect of Bulgarian potassium-calcium zeolites on the assimilation of macro-and trace elements in lambs E Petkova, T Venkov, S Kh Veterinarno-meditsinski Nauki 20 (8), 36-40, 1983 | 18 | 1983 |
| Development of Diversified Tourism Destination Products-A Case Study of Tourism Destination, Municipality of Sofia, Bulgaria. E Petkova, V Marinov JETA: Journal of Environmental & Tourism Analyses 2 (1), 2014 | 9 | 2014 |
| Bulgarian potassium-calcium zeolite in the prophylaxis of digestive tract disorders in calves E Petkova, T Venkov, P Chushkov, A Dzhurov, S Ts Veterinarno-meditsinski Nauki 19 (4), 55-62, 1982 | 8 | 1982 |
| Сравнителен анализ на дейността на местата за настаняване в планински курорти Боровец и Пампорово през 2014 година по месеци, Годишник на Софийския университет „Св Е Петкова Климент Охридски”, Геологогеографски факултет, Книга, 353-376, 2016 | 6 | 2016 |
| Operationalization of Hotel Activities, The Bulgarian Chamber of Education E Petkova Science and Culture, Journal of Science and Research 1 (5), 83-102, 2013 | 6 | 2013 |
| Prophylactic efficacy of Bulgarian potassium-calcium zeolite in digestion disorders in pigs E Petkova, T Venkov, P Chushkov, S Ts, E Poshchakov Veterinarno-meditsinski Nauki 19 (10), 45-51, 1982 | 6 | 1982 |
| Tourism product development and marketing of Sofia metropolitan area: Business perceptions and priorities V Marinov, E Dogramadjieva, M Assenova, E Petkova, B Baikov Metropolitan tourism experience development, 51-67, 2015 | 5 | 2015 |
| A model of the vision, mission, objectives and strategies of the hotel company that determine the processes E Petkova Eastern Academic Journal 2, 60-68, 2017 | 4 | 2017 |
| Opportunities for cultural tourism. A case study of the District of Plovdiv, Bulgaria P Elena Научни трудове на Съюза на учените–Пловдив. Серия А: Обществени науки …, 2017 | 4 | 2017 |
| COMPARATIVE ANALYSIS OF THE ACTIVITIES OF THE ACCOMMODATION ESTABLISHMENTS OF THE BULGARIAN MOUNTAIN RESORTS OF BOROVETS AND PAMPOROVO FOR THE PERIOD 2008-2014 E Petkova Quaestus, 82, 2015 | 2 | 2015 |
| Activities of glutamate-oxalate and glutamate-pyruvate transaminases, alkaline phosphatase and lactate dehydrogenase in the serum of lambs weaned at different ages E Petkova Veterinarno-meditsinski Nauki 19 (2), 46-51, 1982 | 2 | 1982 |
| Biochemical and hematological indices from the use of a bulgarben preparation in digestive disorders in calves E Petkova, T Venkov, P Chushkov, E Iu, E Poshtakov Veterinarno-meditsinski Nauki 18 (10), 28-33, 1981 | 2 | 1981 |
| The Impact of the Socio-Demographic Factors on Tourism Enterprise Management E Petkova Balkans Journal of Emerging Trends in Social Sciences Balkans JETSS 6 (1), 65-74, 2023 | 1 | 2023 |
| A model of the organizational structure of the hotel company that allows the performance of processes E Petkova Quaestus, 170, 2016 | 1 | 2016 |
| Economic impacts and benefits of development of food and beverage sector in Bulgaria ES Petkova Eastern Academic Journal 2, 17-23, 2016 | 1 | 2016 |
| Some Aspects Of Applying Strategic Management For Sustainable Tourism Development In A Destination E Petkova | 1 | 2012 |
| Balkans Journal of Emerging Trends in Social Sciences N Vrcelj, A Sova, M Rožman, R Korez-Vide, G Palánk, É Karai, ... | | 2023 |
| INTERCULTURAL PROJECTIONS OF BULGARIAN PRESCHOOL EDUCATION I KOLEVA, E PETKOVA, M LEGURSKA, K ANGELOV International Journal of Social and Humanities Sciences Research (JSHSR) 8 …, 2021 | | 2021 |
| A new model for analysis of customer interaction activities of city tours providing organizations: Implementation to selective tours of Sofia, Bulgaria E Petkova Turizam 24 (2), 2020 | | 2020 |
