@article{MZM_2011_89_6_a15,
     author = {T. A. Safonova},
     title = {Asymptotic {Integration} of {Systems} of {Quasidifferential} {Equations} of {Second} {Order}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {951--953},
     publisher = {mathdoc},
     volume = {89},
     number = {6},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2011_89_6_a15/}
}