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2021
Ayyad, Saher 
ORCID: 0000-0001-8758-9281 and Khalifa, Muhammad
(2021).
Will the Eastern Nile countries be able to sustain their crop production by 2050? An outlook from water and land perspectives.
Sci. Total Environ., 775.
AMSTERDAM:
ELSEVIER.
ISSN 1879-1026
Lunyolo, Lilian Daphine, Khalifa, Muhammad and Ribbe, Lars (2021). Assessing the interaction of land cover/land use dynamics, climate extremes and food systems in Uganda. Sci. Total Environ., 753. AMSTERDAM: ELSEVIER. ISSN 1879-1026
2020
Kamga, Marc Anselme, Fils, Salomon Cesar Nguemhe, Ayodele, Moyosore Oladele, Olatubara, Charles Olufisayo, Nzali, Serge, Adenikinju, Adeola and Khalifa, Muhammad ORCID: 0000-0002-3100-9353
(2020).
Evaluation of land use/land cover changes due to gold mining activities from 1987 to 2017 using landsat imagery, East Cameroon.
GeoJournal, 85 (4).
S. 1097 - 1115.
DORDRECHT:
SPRINGER.
ISSN 1572-9893
2019
Liu, Yangyang, Yang, Yue, Wang, Qian, Khalifa, Muhammad, Zhang, Zhaoying, Tong, Linjing, Li, Jianlong and Shi, Aiping (2019). Assessing the Dynamics of Grassland Net Primary Productivity in Response to Climate Change at the Global Scale. Chin. Geogr. Sci., 29 (5). S. 725 - 741. NEW YORK: SPRINGER. ISSN 1993-064X
2018
Khalifa, Muhammad ORCID: 0000-0002-3100-9353, Elagib, Nadir Ahmed, Ribbe, Lars and Schneider, Karl ORCID: 0000-0002-4381-2151
(2018).
Spatio-temporal variations in climate, primary productivity and efficiency of water and carbon use of the land cover types in Sudan and Ethiopia.
Sci. Total Environ., 624.
S. 790 - 807.
AMSTERDAM:
ELSEVIER SCIENCE BV.
ISSN 1879-1026