@article{DE_2003_39_4_a16,
     author = {V. Yu. Tyshchenko},
     title = {Equivalence of {Riccati} {Equations} with {Periodic} {Coefficients}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {565--567},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_4_a16/}
}