Swanson, C. A. Comparison and oscillation theory of linear differential equations. (English) Zbl 0191.09904 New York - London, Academic Press (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 324 Documents Keywords:ordinary differential equations × Cite Format Result Cite Review PDF