Gh. Shabbir, A. H. Kara, M. A. Qureshi, “Proper projective symmetry in Bianchi type I space-times”, Eur. Phys. J. Plus, 128:11 (2013)
Michael Tsamparlis, Andronikos Paliathanasis, “Three-fluid cosmological model using Lie and Noether symmetries”, Class. Quantum Grav, 29:1 (2012), 015006
Muhammad Sharif, Saira Waheed, “Energy Content of Colliding Plane Waves Using Approximate Noether Symmetries”, Braz J Phys, 2012
Ghulam Shabbir, M. Ramzan, “Proper projective symmetry in special non-static plane symmetric Lorentzian manifolds”, Eur. Phys. J. Plus, 127:10 (2012)
Michael Tsamparlis, Andronikos Paliathanasis, “The geometric nature of Lie and Noether symmetries”, Gen Relativ Gravit, 2011
Spyros Basilakos, Michael Tsamparlis, Andronikos Paliathanasis, “Using the Noether symmetry approach to probe the nature of dark energy”, Phys. Rev. D, 83:10 (2011)
Andronikos Paliathanasis, Michael Tsamparlis, Spyros Basilakos, “Constraints and analytical solutions of f(R) theories of gravity using Noether symmetries”, Phys. Rev. D, 84:12 (2011)
Michael Tsamparlis, Andronikos Paliathanasis, “Lie symmetries of geodesic equations and projective collineations”, Nonlinear Dyn, 2010
Michael Tsamparlis, Andronikos Paliathanasis, “Lie and Noether symmetries of geodesic equations and collineations”, Gen Relat Gravit, 2010
G. Shabbir, “A note on proper affine vector fields in non-static plane symmetric space-times”, Gravit Cosmol, 16:3 (2010), 245