@article{DE_1992_28_9_a1,
     author = {S. A. Bespalova and Yu. A. Klokov},
     title = {A boundary value problem for a fourth-order singular system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1484--1490},
     publisher = {mathdoc},
     volume = {28},
     number = {9},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_9_a1/}
}