@article{MZM_1987_42_3_a5,
     author = {P. N. Zyukin},
     title = {Dependence of the solution of the {Cauchy} problem for a system of singular differential equations on a parameter},
     journal = {Matemati\v{c}eskie zametki},
     pages = {403--410},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_3_a5/}
}