Gregus, M. Oscillation results on nonlinear third order differential equations.
Chicago-стиль цитированияGregus, Michal. Oscillation Results On Nonlinear Third Order Differential Equations.
MLA-цитированиеGregus, Michal. Oscillation Results On Nonlinear Third Order Differential Equations.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.