| Sequence stratigraphy of the Bahariya Formation, Bahariya Oasis, Western Desert, Egypt H Catineanu O. ,Khalifa, M.A., Wanas Sedimentary Geology. 190, 121-137, 2005 | 163* | 2005 |
| Anti‐atherogenic effect of statins: role of nitric oxide, peroxynitrite and haem oxygenase‐1 G Heeba, ME Moselhy, M Hassan, M Khalifa, R Gryglewski, T Malinski British journal of pharmacology 156 (8), 1256-1266, 2009 | 92 | 2009 |
| Lithofacies ,diagenesis, and cyclicity of the lower member of the Khuff Formation, Al Qasim Provincece, Saudi Arabia MA Khalifa Journal of Asian Earth Sciences 25, 719-734, 2005 | 74 | 2005 |
| Sedimentology of the fluvial and fluvio-marine Facies of the Bahariya Formation (Early Cenomanian) Bahariya Oasis, Western Desert, Egypt O Khalifa, M.A., Catinueanu Journal of African Earth Sciences 51, 89-103, 2008 | 70 | 2008 |
| The Cambrian Araba Formation in north-Eastern Egypt .Facies and depositional environments H Khalifa, M.A., Soliman, H., Wanas Journal of Asian Earth Sciences 27, :873-884., 2006 | 55 | 2006 |
| .Origin of ferricretes in fluvial-marine deposits of the Lower Cenomanian Bahariya Formation, Bahariya Oasis, Western Desert, Egypt LH Tanner, MA Khalifa Journal of African Earth Sciences, 56: 179-189. 56, 179-189, 2010 | 42 | 2010 |
| Stratigraphy, facies and depositional environments of the Lower Cenomanian Bahariya Formation, Bahariya Oasis, Western Desert, Egypt HE Soliman, MA Khalifa J. Geol 37 (1), 193-209, 1993 | 33 | 1993 |
| Depositional cycles in relation to sea-level changes, case studies from Egypt and Saudi Arabia MA Khalifa Egyptian Journal of Geology 40, 141-171, 1996 | 27* | 1996 |
| Lithostratigraphy and sequence stratigraphy of the Turonian-Santonian rocks, Bahariya Oasis Western Desert,Egypt M Khalifa,M.A.,Soliman,H.E. and Abu El Hasan 6th Inter. Conf. .Geol. Arab World, Cairo Univ. P:483-501, 483-501, 2002 | 26* | 2002 |
| Depositional history of the lower Eocene drowned carbonate platform (Drunka Formation), west of Assuit-Minia stretch, Western Desert, Egypt MA Khalifa, MS , Abu El Ghar, H , .Helal, AW Hussein Seventh International Conference on the Geology of Arab World, Cairo …, 2004 | 21 | 2004 |
| Lithofacies, diagenesis, cyclicity and depositional environment of the Upper Cenomanian El-Heiz Formation, Bahariya Oasis, Western Desert, Egypt MM Khalifa, M. A. and Abu El-Hassan Journal of African Earth Sciences 17, 555-570., 1993 | 21* | 1993 |
| Calcareous duricrust, Al Qasim Province, Saudi Arabia: Occurrence and origin Y M. A. Khalifa, Fujio, Kumon, Kokhi Quaternary International 209, 163-174, 2009 | 20 | 2009 |
| Geological and sedimentological studies of West Beni Mazar area, South El-Fayoum Province, Western Desert, Egypt MA Khalifa Ph. D. Thesis, Cairo Uni, 1981 | 20 | 1981 |
| Hydrogeology of the geothermal fractured rock well field at Jabal Hafit, Abu Dhabi Emirate MA Khalifa Proceedings of the 3rd Gulf Water Conference, Muscat, 125-140, 1997 | 19 | 1997 |
| Microfacies architecture and depositional history of the Upper Jurassic (kimmeridgian) Jubaila Formation in central Saudi Arabia AAQ Mohamed Khalifa a, Khaled Al-Kahtany b, Sherif Farouk c,*, Abdelbaset S ... Journal of African Earth Sciences 174, 104076, 2021 | 18 | 2021 |
| Sequence stratigraphy of the Cenomanian Galala Formation, northeast Eastern Desert, Egypt MA Khalifa, MS Abu El Ghar, S Helal, A Wagih Journal of African Earth Sciences, 89: 133-148 89, 133-148, 2014 | 17* | 2014 |
| Upper Paleocene to Lower Eocene microfacies, biostratigraphy, and paleoenvironmental reconstruction in the northern Farafra Oasis, Western Desert, Egypt RCASZ Sherif Farouk , Mohamed A. Khalifa , Mohamed M Abouel Hassan , Cesare ... Microplaelontology, 65: 381-406 65, 381-406, 2019 | 15* | 2019 |
| Carbonate diagenesis of the mixed clastic–carbonate Galala Formation, North Eastern Desert, Egypt MSAEGMAKAW Hussein Arabian geosciences 8, 2551–2565, 2015 | 14* | 2015 |
| Fayoum oasis between problems and potentials: towards enhancing ecotourism in Egypt MA Khalifa, SM El-Khateeb 4th international congress on environmental planning and management Green …, 2011 | 14 | 2011 |
| Synthesis of certain 4-oxo-1.2. 3.4-tetrahydroquinoline and benzazocine derivatives likely to possess analgesic activity MA Shaaban, KM Ghoneim, M Khalifa Die Pharmazie 32 (2), 90-92, 1977 | 14 | 1977 |
