| 1992 |
| Spiros Cotsakis, (1992), Quiescent Self-Regenerating Universe, First Greek Astronomical Meeting, Athens, , 135-140 |
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| 1999 |
| Spiros Cotsakis, (1999), Mathematical problems in higher order gravity and cosmology, Eighth Marcel Grossman Meeting on General Relativity, , World Scientific, 505-507 |
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| 2002 |
| Spiros Cotsakis, P. Leach, (2002), 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., Ukraine, , 128-135 |
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| Spiros Cotsakis, J. Miritzis, (2002), Algebraic Integrability of FRW-Scalar Cosmologies, Ninth Marcel Grossman Meeting on General Relativity, , World Scientific, 1943-1945 |
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| Spiros Cotsakis, J. Miritzis, (2002), Scalar-Tensor σ-Cosmologies, Ninth Marcel Grossman Meeting on General Relativity, , World Scientific, 1945-1947 |
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| Spiros Cotsakis, (2002), Current Trends in Mathematical Cosmology, Modern Theoretical and Observational Cosmology, , Kluwer, ASSL276, 5-18 |
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| Spiros Cotsakis, J. Miritzis, (2002), A Note on Wavemap-Tensor Cosmologies, Modern Theoretical and Observational Cosmology, , Kluwer, ASSL276, 67-74 |
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| Spiros Cotsakis, P. Leach, (2002), Is Nature Generic?, Cosmological Crossroads, , Springer, 3-15 |
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| Spiros Cotsakis, (2002), Cosmological Singularities, Cosmological Crossroads, , Springer, 59-94 |
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| 2003 |
| Spiros Cotsakis, Y. Choquet-Bruhat, (2003), Completeness Theorems in General relativity, 10th Greek Relativity Conference, , World Scientific, 145-149 |
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Greek