@article{2621,
author = {Jones, John jr.},
title = {On the stability of second order differential equations},
journal = {Portugaliae mathematica},
volume = {29},
year = {1970},
pages = {81-86},
zbl = {0222.34028},
mrnumber = {0291579},
language = {en},
url = {http://dml.mathdoc.fr/item/2621}
}
Jones, John jr. On the stability of second order differential equations. Portugaliae mathematica, Tome 29 (1970) pp. 81-86. http://gdmltest.u-ga.fr/item/2621/