@article{TM_2011_274_a1,
     author = {P. S. Novikov and S. I. Adian},
     title = {On a~semicontinuous function},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {10--14},
     publisher = {mathdoc},
     volume = {274},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2011_274_a1/}
}