| 1995 |
| Spiros Cotsakis, Georgios Flessas, Graviton Creation and Conformal Non Invariance in Higher Order Gravity Theories, Phys. Rev., Vol = D52, pp. = 0, , 5783-5786, 1995, |
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| Spiros Cotsakis, Reply to Two Comments by Teyssandier and by Schmidt, Phys. Rev., Vol = D52, pp. = 0, , 6199-6200, 1995, |
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| Spiros Cotsakis, Georgios Flessas, P. Leach, On Noether’s formulation of her theorem, Can. J. Physics, Vol = 74, 543, 1995 |
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| 1994 |
| Spiros Cotsakis, P. Saich, Power-Law Inflation and Conformal Transformations, Class. Quant. Grav., Vol = 11, pp. = 0, , 383-387, 1994, |
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| Spiros Cotsakis, Georgios Flessas, P. Leach, Comment on a Paper Concerning Symmetries of Equations of Motion and Equivalent Lagrangians, Can. J. Phys., Vol = 72, 86-88, 1994 |
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| Spiros Cotsakis, Escape Rates for the Quiescent Self-Regenerating Universe, Phys. Lett., Vol = B328, pp. = 0, , 270-273, 1994, |
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| Spiros Cotsakis, Georgios Flessas, P. Leach, Minimally Coupled Scalar Field Wormholes, Phys. Rev., Vol = D49, pp. = 0, , 6489-6492, 1994, |
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| 1993 |
| Spiros Cotsakis, Conformal Transformations Single Out a Unique Measure of Distance, Phys. Rev., Vol = D47, pp. = 0, , 1437-1439, 1993, |
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| Spiros Cotsakis, J. Demaret, Y. de Rop, L. Querella, Mixmaster Universe in Fourth-Order Gravity Theories, Phys. Rev., Vol = D48, pp. = 0, , 4595-4603, 1993, |
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| Spiros Cotsakis, Georgios Flessas, Stability of FRW Cosmology in Higher Order Gravity, Phys. Rev., Vol = D48, pp. = 0, , 3577-3584, 1993, |
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