@article{1029000744,
author = {Pachpatte, B. G.},
title = {Finite-difference inequalities and an extension of Lyapunov's method.},
journal = {Michigan Math. J.},
volume = {18},
number = {1},
year = {1971},
pages = { 385-391},
language = {en},
url = {http://dml.mathdoc.fr/item/1029000744}
}
Pachpatte, B. G. Finite-difference inequalities and an extension of Lyapunov's method.. Michigan Math. J., Tome 18 (1971) no. 1, pp. 385-391. http://gdmltest.u-ga.fr/item/1029000744/