Sturm and Liouville's work on ordinary linear differential equations. The emergence of Sturm-Liouville theory
1984 ◽
Vol 29
(4)
◽
pp. 309-376
◽
1986 ◽
Vol 41
(1)
◽
pp. 221-222
◽
1992 ◽
Vol 71
(1)
◽
pp. 29-40
◽