| 2007 |
| Spiros Cotsakis, Ifigeneia Klaoudatou, Bel-Robinson energy and the nature of singularities in isotropic cosmologies, Greek Relativity Meeting NEB12, Ιούνιος, 2007, Nauplia, Greece |
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| Spiros Cotsakis, J. Miritzis, Singularities of varying light speed cosmologies, Greek Relativity Meeting NEB12, , 2007, Nauplia, Greece |
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| 2006 |
| Spiros Cotsakis, Future Singularities and Completeness in Cosmology, Thessaloniki Meeting on Cosmology and Gravitational Physics, N. Spyroy, N. Stergioulas, C. Tsagas, YES, 119-129, , 2006 |
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| 2005 |
| Spiros Cotsakis, Ifigeneia Klaoudatou, Modern Approaches to Cosmological Singularities, 11th Greek Relativity Meeting , 150, , 2005 |
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| Spiros Cotsakis, Slice Energy and Theories of Gravitation, 11th Greek Relativity Meeting, 39-48, , 2005 |
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| Spiros Cotsakis, Ifigeneia Klaoudatou, Singular Isotropic Cosmologies and Bel-Robinson Energy, A. Einstein Century International Conference, J. M. Alimi, A. Fuzfa, YES, 842-7, , 2005 |
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| 2003 |
| Spiros Cotsakis, Y. Choquet-Bruhat, Completeness Theorems in General relativity, 10th Greek Relativity Conference, K. D. Kokkotas, N. Stergioulas, YES, 145-149, , 2003, World Scientific |
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| 2002 |
| Spiros Cotsakis, P. Leach, Symmetries, Singularities and Integrability in Nonlinear Mathematical Physics and Cosmology, Fourth International Conference on Symmetries in Nonlinear Mathematical Physics, Proc. Inst. Math. N.A.S., 128-135, , 2002, Ukraine |
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| Spiros Cotsakis, J. Miritzis, Algebraic Integrability of FRW-Scalar Cosmologies, Ninth Marcel Grossman Meeting on General Relativity, V. Gurzadyan, R.T. Jantzen, R. Ruffni, YES, 1943-1945, , 2002, World Scientific |
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| Spiros Cotsakis, J. Miritzis, Scalar-Tensor σ-Cosmologies, Ninth Marcel Grossman Meeting on General Relativity, V. Gurzadyan, R.T. Jantzen, R. Ruffni, YES, 1945-1947, , 2002, World Scientific |
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