Sturm's theorem for equations with delayed argument. Domoshnitsky, A. (1994) Georgian Mathematical Journal
Su alcuni criteri di oscillazione per le equazioni differenziali lineari del secondo ordine Anna Maria Bresquar (1980) Rendiconti del Seminario Matematico della Università di Padova
Sufficient conditions for oscillation and nonoscillation of the solutions of operator-differential equations with piecewise constant argument D. Bainov, M. Dimitrova (1996) Applicationes Mathematicae Effective sufficient conditions for oscillation and nonoscillation of solutions of some operator-differential equations with piecewise constant argument are found.
Sufficient conditions for oscillations of all solutions of a class of impulsive differential equations with deviating argument. Bainov, D.D., Dimitrova, M.B. (1996) Journal of Applied Mathematics and Stochastic Analysis
Sufficient conditions for the oscillation of n -th order nonlinear delay differential equation Ján Ohriska (1980) Czechoslovak Mathematical Journal
Sufficient conditions for the oscillation of solutions to nonlinear second-order differential equations. Berkane, Ahmed (2008) Electronic Journal of Differential Equations (EJDE) [electronic only]
Sulla risoluzione asintotica dell’equazione y ' = A ( t ) y , con A ( t ) matrice 2 × 2 , nel caso oscillante Anna Maria Bresquar (1985) Rendiconti del Seminario Matematico della Università di Padova
Sulla risoluzione asintotica dell’equazione y ' = A ( t ) y , con A ( t ) matrice 2 × 2 , nel caso oscillante. - II Anna Maria Bresquar (1986) Rendiconti del Seminario Matematico della Università di Padova
Sur quelques applications des dispersions centrales dans la théorie des équations différentielles linéaires du deuxième ordre Otakar Borůvka (1965) Archivum Mathematicum
Sur une synthèse pratique de deux méthodes qualitatives d'étude des équations différentielles M. Bertolino (1976) Matematički Vesnik