@article{AA_1994_6_3_a12,
     author = {N. N. Ural'tseva},
     title = {Surfaces with inclination-dependent mean curvature},
     journal = {Algebra i analiz},
     pages = {231--241},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1994_6_3_a12/}
}