@article{1181071857,
author = {Bainov, D.D. and Dimitrova, M.B.},
title = {Oscillatory Properties of the Solutions of Impulsive Differential Equations with a Deviating Argument and Nonconstant Coefficients},
journal = {Rocky Mountain J. Math.},
volume = {27},
number = {4},
year = {1997},
pages = { 1027-1040},
language = {en},
url = {http://dml.mathdoc.fr/item/1181071857}
}
Bainov, D.D.; Dimitrova, M.B. Oscillatory Properties of the Solutions of Impulsive Differential Equations with a Deviating Argument and Nonconstant Coefficients. Rocky Mountain J. Math., Tome 27 (1997) no. 4, pp. 1027-1040. http://gdmltest.u-ga.fr/item/1181071857/