00988nam a2200301 i 450099100082885970753620020507174122.0970312s1971 de ||| | eng 3540055843b10762978-39ule_instLE01302942ExLDip.to Matematicaeng515.352AMS 34C10Coppel, W. A.13773Disconjugacy /W. A. CoppelBerlin :Springer-Verlag,1971147 p. ;26 cmLecture notes in mathematics,0075-8434 ;220Bibliography: p. [139]-147Differential equationsDisconjugacy.b1076297823-02-1728-06-02991000828859707536LE013 34C COP11 (1971)12013000078953le013-E0.00-l- 00000.i1085841628-06-02Disconjugacy81138UNISALENTOle01301-01-97ma -engde 01