| Bioremediation of acid mine drainage in a uranium deposit S Groudev, P Georgiev, I Spasova, M Nicolova Hydrometallurgy 94 (1-4), 93-99, 2008 | 76 | 2008 |
| In situ bioremediation of soils contaminated with radioactive elements and toxic heavy metals SN Groudev, II Spasova, PS Georgiev International journal of mineral processing 62 (1-4), 301-308, 2001 | 55 | 2001 |
| Bioremediation of a soil contaminated with radioactive elements SN Groudev, PS Georgiev, II Spasova, K Komnitsas Hydrometallurgy 59 (2-3), 311-318, 2001 | 53 | 2001 |
| Two-stage microbial leaching of a refractory gold-bearing pyrite ore SN Groudev, II Spasova, IM Ivanov Minerals Engineering 9 (7), 707-713, 1996 | 53 | 1996 |
| In situ bioremediation of contaminated soils in uranium deposits S Groudev, I Spasova, M Nicolova, P Georgiev Hydrometallurgy 104 (3-4), 518-523, 2010 | 35 | 2010 |
| Ecotoxicological characteristic of a soil polluted by radioactive elements and heavy metals before and after its bioremediation P Georgiev, S Groudev, I Spasova, M Nicolova Journal of Geochemical Exploration 142, 122-129, 2014 | 23 | 2014 |
| Decreasing the contamination and toxicity of a heavily contaminated soil by in situ bioremediation S Groudev, P Georgiev, I Spasova, M Nicolova Journal of Geochemical Exploration 144, 374-379, 2014 | 20 | 2014 |
| Extraction of gold and silver from oxide ores by means of a combined biological and chemical leaching SN Groudev, VI Groudeva, II Spasova Biohydrometallurgical Technologies. 1, 417-425, 1993 | 19 | 1993 |
| Treatment of acid mine drainage by a natural wetland SN Groudev, K Komnitsas, II Spasova, I Paspaliaris Wetlands & Remediation Conference, Burlington, USA, 2001 | 15 | 2001 |
| Treatment of acid mine drainage from an uranium deposit by means of a natural wetland SN Groudev, MV Nicolova, II Spasova, K Komnitsas, I Paspaliaris Keynote Lectures, 30, 2001 | 12 | 2001 |
| Leaching of gold from a polymetallic sulphide ore I Spasova, M Nicolova, F Veglio, S Groudev Annu. Univ. Min. Geol. Sodia 49, 213-216, 2006 | 11 | 2006 |
| Treatment of AMD by a natural wetland SN Groudev, K Komnitsas, II Spasova, I Paspaliaris Minerals Engineering 12, 261-270, 2001 | 11 | 2001 |
| Bioremediation of acid mine drainage in an uranium deposit SN Groudev, PS Georgiev, I Spasova, M Nicolova Advanced Materials Research 20, 248-257, 2007 | 10 | 2007 |
| Acid mine drainage cleanup in a uranium deposit by means of a passive treatment system S Groudev, I Spasova, M Nicolova, P Georgiev Physicochemical Problems of Mineral Processing 41, 265-274, 2007 | 10 | 2007 |
| Treatment of waters contaminated with radioactive elements and toxic heavy metals by a natural wetland SN Groudev, PS Georgiev, K Komnitsas, II Spasova, AT Angelov Wetlands and Remediation: An International Conference. Battelle Press, Salt …, 2000 | 10 | 2000 |
| Treatment of acid drainage from a uranium mine by means of a passive system SN Groudev, PS Georgiev, II Spasova, AT Angelov, K Komnitsas | 9 | 2000 |
| A combined chemical and biological heap leaching of an oxide gold-bearing ore SN Groudev, II Spasova, IM Ivanov Physicochemical Problems of Mineral Processing 33, 55-61, 1999 | 9 | 1999 |
| Pilot scale microbial leaching of gold and silver from an oxide ore in Elshitza Mine, Bulgaria SN Groudev, IM Ivanov, II Spasova, VI Groudeva Minerals Bioprocessing II, 135-144, 1995 | 9 | 1995 |
| Transport of radionuclides and heavy metals during the cleanup of a polluted cinnamonic soil P Georgiev, S Groudev, I Spasova, M Nicolova Journal of Geochemical Exploration 174, 148-158, 2017 | 8 | 2017 |
| Microbial removal of toxic metals from a heavily polluted soil M Nicolova, I Spasova, P Georgiev, S Groudev Journal of Geochemical Exploration 182, 242-246, 2017 | 7 | 2017 |
