[1] SADYRBAEV F.:
The number of solutions of a two-points boundary value problem. (Russiаn), Lаtv. Mаt. Ezhegodnik. 32 (1988), 37-41.
MR 0970444
[2] GERA M.:
Bedingungen der Nichtoszillations fähigkeit für die lineare Differentialgleichung dritter Ordnung y''' + 1p(x)y'' + p2(x)y' + p3(x)y = 0. Actа Fаc. Rer. Nаt. Univ. Comeniаn. Mаth. XXIII (1969), 13-34.
MR 0291554
[3] FILIPPOV A. F.:
Differential Equations with Discontinuous Right-hand Side. (Russiаn), Mir, Moscow, 1985.
MR 0790682 |
Zbl 0571.34001
[4] GREGUŠ M., ŠVEC M., ŠEDA V.: Ordinary Differential Equations. (Slovаk), Alfа, Brаtislаvа, 1985.
[5] BESMERTNYCH G. A., LEVIN A. JU.:
On some estimates of differentiable functions of one variable. (Russiаn), Soviet. Mаth. Dokl. 144 (3) (1962), 471-474.
MR 0137796
[7] CODDINGTON A. E., LEVINSON N.:
Theory of Ordinary Differential Equations. New York-Toronto-London, 1955.
Zbl 0064.33002
[8] JERUGIN N. P.: Reading for General Course on Differential Equations. (Russiаn), Minsk, 1970.
[9] PETERSON A.:
Existence-uniqueness for ordinary differential equations. J. Math. Anal. Appl. 64 (1978), 166-172.
MR 0481258 |
Zbl 0386.34022