Zahra, K., Z. Awad, H. R. Dwidar, and M. Radwan, "On Stability of Triangular Points of the Restricted Relativistic Elliptic Three-Body Problem with Triaxial and Oblate Primaries", Serbian Astronomical Journal, vol. 195, pp. 47-52, 2017.
Owis, A. H., H. M. Mohammed, H. R. Dwidar, and D. Mortari, "Accurate Doppler Shift Computation of an Artificial Satellite", First International Conference on New Trends and Applications of GNSS, Giza Egypt, 1-4 Sep., 2012.
Owis, A. H., H. M. Mohammed, H. R. Dwidar, and Daniele Mortari, "GPS Satellite Range and Relative Velocity Computation", Theory and Applications of Mathematics & Computer Science, vol. 2, issue 1, pp. p53-60, 2012.
Dwidar, H. R., and A. M. Sharaf, "Statistical Magnitude Analysis and Distance Determination of the Nearby F8V Stars", Engineering, Technology & Applied Science Research, vol. 4, issue 4, pp. 681-685, 2014.
Dwiar, H. R., "Semi-Analytical and Numerical Solution of Regularized Burdet Equations to Predict the Motion of an Artificial Satellite", American Journal of Applied Mathematics, vol. 2, issue 3, pp. 85-91, 2014.
Dwidar, H. R., "Prediction of Satellite Motion under the Effects of the Earth’s Gravity, Drag Force and Solar Radiation Pressure in terms of the KS-regularized Variables", International Journal of Advanced Computer Science and Applications (IJACSA), vol. 5, issue 5, pp. 35-41, 2014.
Dwidar, H. R., and A. H. Owis, "Relative Motion of Formation Flying with Elliptical Reference Orbit", International Journal of Advanced Research in Artificial Intelligence (IJARAI), vol. 2, issue 6, pp. 79 - 86, 2013.
Mohmmed, H. M., M. K. Ahmed, A. H. Owis, and H. R. Dwidar, "Analytical Solution of the Perturbed Oribt-Attitude Motion of a Charged Spacecraft in the Geomagnetic Field", International Journal of Advanced Computer Science and Applications (IJACSA), vol. 4, issue 3, pp. 272 - 286 , 2013.
Daniele Mortari, J. J. Davis, A. Owis, and H. R. Dwidar, "Reliable Global Navigation System using Flower Constellation", International Journal of Advanced Computer Science and Applications (IJACSA), vol. 4, issue 2, pp. 260-266, 2013.
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