Scheveningen Conference on Differential Equations & Martini , R. (1980). Geometrical approaches to differential equations: Proceedings of the fourth Scheveningen conference on Differential equations, the Netherlands, August 26-31, 1979. Springer-Verlag.
Παραπομπή σε μορφή Chicago (17η εκδ.)Scheveningen Conference on Differential Equations και R. Martini. Geometrical Approaches to Differential Equations: Proceedings of the Fourth Scheveningen Conference on Differential Equations, the Netherlands, August 26-31, 1979. Berlin ; New York: Springer-Verlag, 1980.
Παραπομπή σε μορφή MLA (9th εκδ.)Scheveningen Conference on Differential Equations και R. Martini. Geometrical Approaches to Differential Equations: Proceedings of the Fourth Scheveningen Conference on Differential Equations, the Netherlands, August 26-31, 1979. Springer-Verlag, 1980.