@article{DE_2000_36_10_a16,
     author = {N. N. Nefedov and A. G. Nikitin},
     title = {The asymptotic method of differential inequalities for singularly perturbed integro-differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1398--1404},
     publisher = {mathdoc},
     volume = {36},
     number = {10},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_10_a16/}
}