@article{UZKU_2012_154_1_a15,
     author = {A. N. Akhmetova and A. V. Khmelnitskaya},
     title = {On some surfaces defined by conformal radius},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {179--188},
     publisher = {mathdoc},
     volume = {154},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2012_154_1_a15/}
}