@article{702187,
title = {On some stability problems},
booktitle = {Differential Equations and Their Applications},
series = {GDML\_Books},
publisher = {Publishing House of the Czechoslovak Academy of Sciences},
address = {Prague},
year = {1963},
pages = {217-221},
mrnumber = {MR0185228},
zbl = {0137.28702},
url = {http://dml.mathdoc.fr/item/702187}
}
Vrkoč, I. On some stability problems, dans Differential Equations and Their Applications, GDML_Books, (1963), pp. 217-221. http://gdmltest.u-ga.fr/item/702187/