Περιοδικό

1988
Spiros Cotsakis, J. Barrow, (1988), Inflation and the Conformal Structure of Higher-Order Gravity Theories, Phys. Lett., Vol = B214, (0), pp. = 515-518   
1989
Spiros Cotsakis, J. Barrow, (1989), Chaotic Behaviour in Higher-Order Gravity Theories, Phys. Lett., Vol = B232, (0), pp. = 172-176   
1991
Spiros Cotsakis, J. Barrow, (1991), Self-Regenerating Inflationary universe in higher-order gravity in arbitrary dimension, Phys. Lett., Vol = B258, (0), pp. = 299-304   
1993
Spiros Cotsakis, (1993), Conformal Transformations Single Out a Unique Measure of Distance, Phys. Rev., Vol = D47, (0), pp. = 1437-1439   
Spiros Cotsakis, J. Demaret, Y. de Rop, L. Querella, (1993), Mixmaster Universe in Fourth-Order Gravity Theories, Phys. Rev., Vol = D48, (0), pp. = 4595-4603   
Spiros Cotsakis, Georgios Flessas, (1993), Stability of FRW Cosmology in Higher Order Gravity, Phys. Rev., Vol = D48, (0), pp. = 3577-3584   
Spiros Cotsakis, Georgios Flessas, (1993), Generalized No-Hair Theorems, Phys. Lett., Vol = B319, (0), pp. = 69-73   
Spiros Cotsakis, P. Leach, (1993), Painleve Analysis of the Mixmaster Universe, J. Phys., Vol = A27, (0), pp. = 1625-1631   
1994
Spiros Cotsakis, P. Saich, (1994), Power-Law Inflation and Conformal Transformations, Class. Quant. Grav., Vol = 11, (0), pp. = 383-387   
Spiros Cotsakis, Georgios Flessas, P. Leach, (1994), Comment on a Paper Concerning Symmetries of Equations of Motion and Equivalent Lagrangians, Can. J. Phys., Vol = 72, pp. = 86-88   

Συνέδριο

1992
Spiros Cotsakis, (1992), Quiescent Self-Regenerating Universe, First Greek Astronomical Meeting, Athens, , 135-140   
1999
Spiros Cotsakis, (1999), Mathematical problems in higher order gravity and cosmology, Eighth Marcel Grossman Meeting on General Relativity, , World Scientific, 505-507   
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   
Spiros Cotsakis, J. Miritzis, (2002), Algebraic Integrability of FRW-Scalar Cosmologies, Ninth Marcel Grossman Meeting on General Relativity, , World Scientific, 1943-1945   
Spiros Cotsakis, J. Miritzis, (2002), Scalar-Tensor σ-Cosmologies, Ninth Marcel Grossman Meeting on General Relativity, , World Scientific, 1945-1947   
Spiros Cotsakis, (2002), Current Trends in Mathematical Cosmology, Modern Theoretical and Observational Cosmology, , Kluwer, ASSL276, 5-18   
Spiros Cotsakis, J. Miritzis, (2002), A Note on Wavemap-Tensor Cosmologies, Modern Theoretical and Observational Cosmology, , Kluwer, ASSL276, 67-74   
Spiros Cotsakis, P. Leach, (2002), Is Nature Generic?, Cosmological Crossroads, , Springer, 3-15   
Spiros Cotsakis, (2002), Cosmological Singularities, Cosmological Crossroads, , Springer, 59-94   
2003
Spiros Cotsakis, Y. Choquet-Bruhat, (2003), Completeness Theorems in General relativity, 10th Greek Relativity Conference, , World Scientific, 145-149   
1996
Spiros Cotsakis, G. Gibbons, (Springer LNP),   
2000
Spiros Cotsakis, G. Gibbons, (Springer LNP),   
2002
Spiros Cotsakis, E. Papantonopoulos, (Springer LNP),   
Spiros Cotsakis, M. Plionis, (Kluwer ASSL),   
2005
Spiros Cotsakis, J. Miritzis, (J. Phys. Conf. Series. 8),