Howard, H. C. Oscillation criteria for matrix differential equations. (English) Zbl 0148.07203 Can. J. Math. 19, 184-199 (1967). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 12 Documents Keywords:ordinary differential equations PDFBibTeX XMLCite \textit{H. C. Howard}, Can. J. Math. 19, 184--199 (1967; Zbl 0148.07203) Full Text: DOI