Author: Regenda, Ján

Regenda, Ján: Oscillation criteria for differential equation $y\sp {(4)}+P(t)y''+R(t)y'+Q(t)y=0$. (English). Mathematica Slovaca, vol. 34 (1984), issue 4, pp. 419-425
Regenda, Ján: A note on oscillation and nonoscillation criteria for fourth order linear differential equations. (English). Mathematica Slovaca, vol. 33 (1983), issue 3, pp. 297-302
Regenda, Ján: Oscillation criteria for fourth-order linear differential equations. (English). Mathematica Slovaca, vol. 29 (1979), issue 1, pp. 3-16
Regenda, Ján: Oscillatory and nonoscillatory properties of solutions of the differential equation $y^{(4)}+P(t)y"+Q(t)y=0$. (English). Mathematica Slovaca, vol. 28 (1978), issue 4, pp. 329-342
Regenda, Ján: On some properties of third-order linear differential equation. (English). Mathematica Slovaca, vol. 26 (1976), issue 1, pp. 3-18