Brauer, F., & Nohel, J. A. (1989). The qualitative theory of ordinary differential equations: An introduction. New York: Dover Publications.
Παραπομπή Chicago StyleBrauer, Fred, and John A. Nohel. The Qualitative Theory of Ordinary Differential Equations: An Introduction. New York: Dover Publications, 1989.
Παραπομπή MLABrauer, Fred, and John A. Nohel. The Qualitative Theory of Ordinary Differential Equations: An Introduction. New York: Dover Publications, 1989.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.