@article{SJIM_2005_8_4_a5,
     author = {R. O. Karelina and N. V. Pertsev},
     title = {Construction of two-sided estimates for solutions of some systems of differential equations with aftereffect},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {60--72},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2005_8_4_a5/}
}