Nonlinear differential equations : invariance, stability, and bifurcation - Bazley, Norman W. (Academic Press, 1981)
Autores tomados de págins preliminares–"Proceedings of a symposium based on the international conference on nonlinear differential equations: invariance, stability, and bifurcation, held in Villa Madruzzo, Trento, Italy, from May 25-30, 1980."