@article{SJIM_2012_15_1_a2,
     author = {A. I. Dvirnyǐ and V. I. Slyn'ko},
     title = {An analog of {Kamenkov's} critical case for systems of ordinary differential equations with pulse action},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {22--33},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2012_15_1_a2/}
}