An oscillation criterion for a canonical form of third order linear differential equations
Václav Tryhuk (1977)
Archivum Mathematicum
Similarity:
Václav Tryhuk (1977)
Archivum Mathematicum
Similarity:
Václav Tryhuk (1975)
Archivum Mathematicum
Similarity:
Ján Ohriska (1989)
Czechoslovak Mathematical Journal
Similarity: