@article{1102912804,
author = {Keener, M. S.},
title = {Oscillatory solutions and multi-point boundary value functions for certain $n$th-order linear ordinary differential equations.},
journal = {Pacific J. Math.},
volume = {55},
number = {2},
year = {1974},
pages = { 187-202},
language = {en},
url = {http://dml.mathdoc.fr/item/1102912804}
}
Keener, M. S. Oscillatory solutions and multi-point boundary value functions for certain $n$th-order linear ordinary differential equations.. Pacific J. Math., Tome 55 (1974) no. 2, pp. 187-202. http://gdmltest.u-ga.fr/item/1102912804/