| Tehnologii de protecţie sau refacere a solurilor R Brejea Editura Universităţii, 2009 | 100 | 2009 |
| Ştiinţa solului–îndrumător de lucrări practice R Brejea Editura Universităţii din Oradea, 84-105, 2010 | 83 | 2010 |
| Practicum de pedologie R Brejea, C Domuţa Editura Universităţii din Oradea, 2011 | 62 | 2011 |
| Enzymatic indicators of soil quality AD Samuel, R Brejea, C Domuta, S Bungau, N Cenusa, DM Tit J. Environ. Prot. Ecol 18 (3), 871-878, 2017 | 47 | 2017 |
| Practicum de tehnologii de protecţie a solurilor R Brejea Editura Universităţii din Oradea, 2011 | 43 | 2011 |
| Monitoringul mediului C Domuţa, R Brejea Editura Universităţii din Oradea, 331, 2010 | 41 | 2010 |
| Tehnologii de protecţie a solurilor R Brejea Editura Universităţii din Oradea, 367, 2014 | 26 | 2014 |
| Influence of the crop system on soil erosion and on the soil physical properties under the Romanian north-western area conditions. C Domuta, M Sandor, G Ciobanu, A Samuel, C Ciobanu, A Domuta, ... | 22 | 2012 |
| Refacerea şi protecţia terenurilor din carierele de bauxită din Munţii Pădurea Craiului R Brejea, C Domuţa Editura Universităţii, 2009 | 18 | 2009 |
| Ştiinţa solului R Brejea Editura Universitaţii din Oradea, 2010 | 16 | 2010 |
| Modifications of the soil structure under the erosion and crops influence in the condition from NorthWestern Romania C Domuţa, Ş Maria, B Gh, NC Sabău, I Borza, M Cărbunar, A Samuel, ... Buletin USAMV Cluj-Napoca 63, 447, 2006 | 16 | 2006 |
| Long term effects of agricultural systems on soil phosphatase activities AD Samuel, C Domuţa, M Şandor, A Vuşcan, R Brejea Rom. Agric. Res 28, 157-163, 2011 | 15 | 2011 |
| The study of physical, chemical and enzymatical properties of the land from a former bauxite quarry in the Pădurea Craiului Mountains in the context of ecological reconstruction R Brejea, C Domuţa, M Şandor, A Dora, VB SAMUEL, G Ciobanu, ... Carpathian Journal of Earth and Environmental Sciences 3 (2), 49-63, 2008 | 15 | 2008 |
| Drought analysis by the climate indexes in link with the yield of the main crops from the Crişurilor Plain, Romania NC Sabău, C Domuţa, TE Man, M Şandor, R Brejea International Conference on Drought Mitigation and Prevention of Land …, 2002 | 15* | 2002 |
| Successful and unsuccessful stories in restoring despoiled and degraded lands in Eastern Europe R Halbac-Cotoara-Zamfir, H Gunal, M Birkas, T Rusu, R Brejea Advances in Environmental Biology 9 (23), 368-376, 2015 | 13 | 2015 |
| Practicum de pedologie, Ed R Brejea, C Domuţa Universităţii din Oradea, 2011 | 11 | 2011 |
| Eroziunea terenurilor în pantă din nord-vestul României C Domuţa, R Brejea Editura Universităţii din Oradea, 2010 | 11 | 2010 |
| Cercetări privind protecţia culturilor împotriva buruienilor efectuate la SCDA Livada S Mondici, T Fritea, R Brejea Analele Universităţii din Oradea, Fascicula Protecţia Mediului 27, 47-54, 2016 | 10 | 2016 |
| The influence of soil oil pollution on agricultural crops-Joint International Conference on Long-term Experiments Ş Maria, NC Sabău, C Domuţa, C Domuţa, R Brejea Agricultural Research and Natural Resources, Debrecen-Nyirlugos, 31st May …, 2007 | 10 | 2007 |
| Enzymological study of the evolution of the technogenic soil submitted to biological recultivation in the bauxite mine from Padurea Craiului (Romania). AD Samuel, C Domuta, G Ciobanu, M Sandor, C Ciobanu, R Brejea | 9 | 2011 |
