QUALITATIVE THEORY OF DIFFERENTIAL EQUATIONS - Nemytskii, Viktor V.; Stepanov, V. V. (Princeton, N. J. Princeton University Press, 1960)
Translation Of Kachestvennaia Teoriia Differentsial'Nyky Uravnenii, Izd. 2., Perep. I Dop. 1949
Keywords: Differential Equations; Dynamics