@article{RM_1997_52_4_a14,
     author = {I. V. Polterovich and A. I. Shnirel'man},
     title = {An asymptotic subcone of the {Lobachevskii} plane as a~space of functions},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {842--843},
     publisher = {mathdoc},
     volume = {52},
     number = {4},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1997_52_4_a14/}
}