@article{DE_1999_35_3_a7,
     author = {Ya. Sh. Il'yasov},
     title = {On the existence of conformally equivalent metrics for {Riemannian} manifolds with boundary},
     journal = {Differencialʹnye uravneni\^a},
     pages = {334--339},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_3_a7/}
}