@article{GDZPPN002475022,
title = {Some General Instability Criteria (II).},
journal = {Monatshefte f\"ur Mathematik},
volume = {70},
year = {1966},
pages = {1-7},
zbl = {0152.08802},
url = {http://dml.mathdoc.fr/item/GDZPPN002475022}
}
Burton, T.A. Some General Instability Criteria (II).. Monatshefte für Mathematik, Tome 70 (1966) pp. 1-7. http://gdmltest.u-ga.fr/item/GDZPPN002475022/