A note on oscillation and nonoscillation criteria for fourth order linear differential equations
Ján Regenda (1983)
Mathematica Slovaca
Similarity:
Ján Regenda (1983)
Mathematica Slovaca
Similarity:
Etgen, Garret J., Taylor, Willie E.jun. (1986)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Ján Regenda (1978)
Mathematica Slovaca
Similarity:
Vincent Šoltés (1996)
Mathematica Slovaca
Similarity: