Si danno teoremi sul comportamento oscillatorio delle soluzioni di una classe di equazioni differenziali ordinarie del primo ordine con argomento ritardato.
@article{RLINA_1977_8_63_5_351_0, author = {G.S. Ladde}, title = {Oscillations caused by retarded perturbations of first order linear ordinary differential equations}, journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti}, volume = {62}, year = {1977}, pages = {351-359}, zbl = {0402.34058}, mrnumber = {0548601}, language = {en}, url = {http://dml.mathdoc.fr/item/RLINA_1977_8_63_5_351_0} }
Ladde, G.S. Oscillations caused by retarded perturbations of first order linear ordinary differential equations. Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti, Tome 62 (1977) pp. 351-359. http://gdmltest.u-ga.fr/item/RLINA_1977_8_63_5_351_0/
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