@article{RM_1961_16_1_a27,
     author = {V. A. Yakubovich},
     title = {Systems of standard linear differential equations with periodic coefficients (summary of the doctor's {Thesis)}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1961_16_1_a27/}
}