| Survey of the concentration of heavy metals in beech leaves in the region of Central Balkan National Park, Bulgaria D Bezlova, M Doncheva-Boneva, E Tsvetkova, K Vassilev Phytologia Balcanica 22 (3), 335-339, 2016 | 7 | 2016 |
| ASSESSMENT OF HEAVY METALS AND ARSENIC CONTENT IN GRASSLANDS OF BULGARKA NATURE PARK E. Tsvetkova, D. Bezlova, D. Karatoteva, L. Malinova, G. Kolev Genetics and Plant Physiology 2 ((3–4)), pp. 161–170, 2012 | 5 | 2012 |
| Risk of soil erosion in Bulgaria and Recommendations for soil-protection use of the agricultural lands S Ruseva, L Lozanova, D Nekova, V Stefanova, H Dzhodzhov, ... Part І and Part ІІ. PubilshSighSet-Eco, S 304, 2010 | 5 | 2010 |
| Implementation of new technologies in science education at the University of Forestry V Brezin, B Zhelyazova, E Tzvetkova International Conference on e-Learning’14 Proceedings, 267-271, 2013 | 4 | 2013 |
| Content of heavy metals and arsenic in medicinal plants from recreational areas in Bulgarka Nature Park. D Bezlova, E Tsvetkova, D Karatoteva, L Malinova | 4 | 2012 |
| An Innovative Approach in Education V Brezin, B Zhelyazova, R Milchev, M Mladenova, E Tsvetkova Innovation in Woodworking Industry and Engineering Design 3, 5-9, 2013 | 2 | 2013 |
| COEFFICIENTS OF BIOLOGICAL ACCUMULATION IN WOOD SPECIES IN THE EAST RHODOPES REGION E Pavlova, L Malinova, E Tsvetkova “Управление и устойчиво развитие” ISSN 1311-4506, 288, 2003 | 2* | 2003 |
| IMPACT OF BIOCARBON ON AGROCHEMICAL PROPERTIES OF SOIL DURING BROCCOLI VEGETATION V Petrova, M Yordanova, APDT Nikolova, APDE Tsvetkova 20th International Multidisciplinary Scientific GeoConference-SGEM 2020, 177-184, 2020 | 1 | 2020 |
| Heavy metals and arsenic in soils from grasslands in Bulgarka Nature Park. D Karatoteva, E Tsvetkova, D Bezlova | 1 | 2014 |
| Soil conservation and economic efficiency of some forage crops grown in the region of Balkan submountain. P Mihailova, E Tzvetkova, A Lazarov | 1 | 2001 |
| Element composition of Black Pine needles in forest ecosystems E Pavlova, E Tzvetkova JOURNAL OF BALKAN ECOLOGY 3 (4), 50-57, 2000 | 1 | 2000 |
| Effect of soil erosion and fertilization on the economic efficiency of some crops and the fertility of chromic luvisol. V Krumov, E Tzvetkova | 1 | 1998 |
| The biological factor: an effectiveness criterion of soil management. A Taleva, E Tzvetkova, A Momchev | 1 | 1988 |
| IMPACT OF PLATANUS L. SPECIES ON THE POLLEN EMISSIONS AND AIR POLLUTION OF SOFIA. S ANISIMOVA, E TSVETKOVA, M HRISTOVA-SAVOVA Scientific Papers. Series B. Horticulture 67 (1), 2023 | | 2023 |
| Involvement of young people in the citizen science of invasive alien species in Bulgaria E Tsvetkova, G Milchev, H Stefanova, R Tomov Acta Scientifica Naturalis 9 (2), 10-19, 2022 | | 2022 |
| Assessment of the Motivation for Participation in Citizen Science Initiatives for Invasive Alien Species in Bulgaria. EH Tsvetkova, GI Milchev, HH Stefanova Ecologia Balkanica 14 (1), 2022 | | 2022 |
| Potential risks of production contamination in urban agriculture. M Yordanova, V Petrova, T Nikolova, E Tsvetkova | | 2021 |
| GIS APPLICATION FOR PUBLIC SOURCE DATA ANALYSIS RELATED TO AIR POLLUTION R Miltchev, E Tsvetkova, G Milchev KNOWLEDGE-International Journal 35 (3), 883-888, 2019 | | 2019 |
| Modelling of the behavior of natural radionuclides and the environmental risk in the sites from the mining uranium ore in Bulgaria. RT Petrova, EH Tsvetkova Ecologia Balkanica, 2019 | | 2019 |
| Оценка на риска за горските екосистеми при импактни нива на въздействие M Doncheva-Boneva, L Malinova, I Koleva-Lizama, E Tsvetkova | | 2011 |
