Ján Ohriska

On solutions of third order nonlinear differential equations

Ivan Mojsej, Ján Ohriska, Ivan Mojsej, 2006 .

Oscillation of second order delay and ordinary differential equation

Ján Ohriska, J. Ohriska, 1984 .

Oscillation of second-order linear delay differential equations

Ján Ohriska, J. Ohriska, 2008 .