| Review of life cycle assessment for biogas production in Europe O Hijazi, S Munro, B Zerhusen, M Effenberger Renewable and Sustainable Energy Reviews 54, 1291-1300, 2016 | 378 | 2016 |
| Environmental impacts concerning the addition of trace metals in the process of biogas production from anaerobic digestion of slurry O Hijazi, E Abdelsalam, M Samer, BMA Amer, IH Yacoub, MA Moselhy, ... Journal of Cleaner Production 243, 118593, 2020 | 58 | 2020 |
| Life cycle assessment of the use of nanomaterials in biogas production from anaerobic digestion of manure O Hijazi, E Abdelsalam, M Samer, YA Attia, BMA Amer, MA Amer, M Badr, ... Renewable Energy 148, 417-424, 2020 | 55 | 2020 |
| An overview of greenhouse gases emissions in Hungary S Mohammed, AR Gill, K Alsafadi, O Hijazi, KK Yadav, MA Hasan, ... Journal of Cleaner Production 314, 127865, 2021 | 51 | 2021 |
| Life cycle assessment of the use of laser radiation in biogas production from anaerobic digestion of manure E Abdelsalam, O Hijazi, M Samer, IH Yacoub, AS Ali, RH Ahmed, ... Renewable Energy 142, 130-136, 2019 | 37 | 2019 |
| Environmental impacts concerning flexible power generation in a biogas production O Hijazi, S Tappen, M Effenberger Carbon Resources Conversion 2 (2), 117-125, 2019 | 28 | 2019 |
| Life cycle assessment of using laser treatment and nanomaterials to produce biogas through anaerobic digestion of slurry M Samer, O Hijazi, EM Abdelsalam, A El-Hussein, YA Attia, IH Yacoub, ... Environment, development and sustainability, 1-14, 2021 | 22 | 2021 |
| Environmental impact assessment of bioplastics production from agricultural crop residues M Samer, O Hijazi, BA Mohamed, EM Abdelsalam, MA Amer, IH Yacoub, ... Clean Technologies and Environmental Policy 24 (3), 815-827, 2022 | 15 | 2022 |
| Comparing methane emissions from different sheep-keeping systems in semiarid regions: A case study of Syria O Hijazi, W Berg, S Moussa, C Ammon, K von Bobrutzki, R Brunsch Journal of the Saudi Society of Agricultural Sciences 13 (2), 139-147, 2014 | 12 | 2014 |
| Awassi sheep keeping in the Arabic steppe in relation to nitrous oxide emission from soil O Hijazi, W Berg, S Moussa, C Ammon, K von Bobrutzki, R Brunsch Journal of the Association of Arab Universities for Basic and Applied …, 2014 | 11 | 2014 |
| GHGs emission from the agricultural sector within EU-28: a multivariate analysis approach E Harsányi, B Bashir, G Almhamad, O Hijazi, M Maze, A Elbeltagi, ... Energies 14 (20), 6495, 2021 | 10 | 2021 |
| Data mining and machine learning algorithms for optimizing maize yield forecasting in central Europe E Harsányi, B Bashir, S Arshad, A Ocwa, A Vad, A Alsalman, I Bácskai, ... Agronomy 13 (5), 1297, 2023 | 7 | 2023 |
| Life cycle assessment of biogas production in small-scale in Columbia O Hijazi, S Mettenleiter, M Samer, E Abdelsalam, JG Wiecha, KL Ziegler, ... 2019 ASABE Annual International Meeting, 1, 2019 | 6 | 2019 |
| Methoden zur Analyse und Bewertung ausgewählter ökologischer und ökonomischer Wirkungen von Produktsystemen aus land-und forstwirtschaftlichen Rohstoffen (In German: Methods to … C Wolf, D Dressler, K Engelmann, D Klein, G Weber-Blaschke, T Böswirth, ... ExpRessBio, Berichte aus dem TFZ 45, 165, 2016 | 6 | 2016 |
| Environmental impacts of E-Waste recycling in Africa O Hijazi, A Okyere, H Bernhardt 2021 ASABE Annual International Virtual Meeting, 1, 2021 | 5 | 2021 |
| Simulation of different biogas upgrading processes and LCA for the selection of the best technology S Moioli, O Hijazi, LA Pellegrini, H Bernhardt 2020 ASABE Annual International Virtual Meeting, 1, 2020 | 5 | 2020 |
| Development of Automatic Milking in Germany H Bernhardt, M Höhendinger, A Gräff, O Hijazi, M Höld, M Reger, ... 2019 ASABE Annual International Meeting, 1, 2019 | 5 | 2019 |
| Sustainability of biogas production with small-sized plant in South America O Hijazi, S Mettenleiter, J Bauerdick, M Treiber, A Gräff, H Bernhardt Bio-Economy and Agri-production, 147-158, 2021 | 4 | 2021 |
| Sensorsystems in German dairy Farming–Aspects of hardware design and sustainabilityIntroduction JJ Bauerdick, M Treiber, M Höhendinger, O Hijazi, N Schlereth, ... 2019 ASABE Annual International Meeting, 1, 2019 | 4 | 2019 |
| Cowenergy—possibilities of energy management in energy self-sufficient dairy cowsheds M Höhendinger, M Höld, O Hijazi, M Treiber, J Bauerdick, L Frech, ... Bio-Economy and Agri-production, 159-172, 2021 | 2 | 2021 |
