@article{TM_2011_274_a5,
     author = {Nikolay K. Vereshchagin and Andrej A. Muchnik},
     title = {On joint conditional complexity (entropy)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {103--118},
     publisher = {mathdoc},
     volume = {274},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2011_274_a5/}
}