Golubitsky, M., & Schaeffer, D. G. (1985). Singularities and groups in bifurcation theory. Springer-Verlag.
Cita Chicago (17th ed.)Golubitsky, Martin, i David G. Schaeffer. Singularities and Groups in Bifurcation Theory. Nueva York: Springer-Verlag, 1985.
Cita MLA (9th ed.)Golubitsky, Martin, i David G. Schaeffer. Singularities and Groups in Bifurcation Theory. Springer-Verlag, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.