Pnevmatikos, S. e., & Pnevmatikos, S. N. (1985). Singularities & dynamical systems: Proceedings of the International Conference on Singularities and Dynamical Systems, Heraklion, Greece, 30 August-6 September 1983. Elsevier Science Publishers ; Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co..

Pnevmatikos, S.N ed, and Spyros N. Pnevmatikos. Singularities & Dynamical Systems: Proceedings of the International Conference on Singularities and Dynamical Systems, Heraklion, Greece, 30 August-6 September 1983. Amsterdam, Netherlands : New York, N.Y., U.S.A.: Elsevier Science Publishers ; Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co., 1985.

Pnevmatikos, S.N ed, and Spyros N. Pnevmatikos. Singularities & Dynamical Systems: Proceedings of the International Conference on Singularities and Dynamical Systems, Heraklion, Greece, 30 August-6 September 1983. Elsevier Science Publishers ; Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co., 1985.