@article{DE_1991_27_3_a9,
     author = {N. N. Khvedelidze and T. A. Chanturiya},
     title = {Oscillation of solutions of third-order linear ordinary differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {452--460},
     publisher = {mathdoc},
     volume = {27},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_3_a9/}
}