Lasota, A.; Opial, Z. On the existence of solutions of linear problems for ordinary differential equations. (English) Zbl 0144.09301 Bull. Acad. Pol. Sci., Sér. Sci. Math. Astron. Phys. 14, 371-376 (1966). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Review Keywords:ordinary differential equations PDFBibTeX XMLCite \textit{A. Lasota} and \textit{Z. Opial}, Bull. Acad. Pol. Sci., Sér. Sci. Math. Astron. Phys. 14, 371--376 (1966; Zbl 0144.09301)