@article{IVM_1981_2_a12,
     author = {I. K. Karasaev},
     title = {A~method of determining the characteristic exponents of linear homogeneous differential equations with periodic coefficients depending on the parameter},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {85--87},
     publisher = {mathdoc},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_2_a12/}
}