@article{1102810154,
author = {Kreith, Kurt and Swanson, C. A.},
title = {Conjugate points for nonlinear differential equations.},
journal = {Pacific J. Math.},
volume = {79},
number = {2},
year = {1978},
pages = { 171-184},
language = {en},
url = {http://dml.mathdoc.fr/item/1102810154}
}
Kreith, Kurt; Swanson, C. A. Conjugate points for nonlinear differential equations.. Pacific J. Math., Tome 79 (1978) no. 2, pp. 171-184. http://gdmltest.u-ga.fr/item/1102810154/