@article{TRSPY_2002_239_a0,
     author = {E. P. Baranovskii and N. P. Dolbilin and A. A. Mal'tsev},
     title = {Sergei {Sergeevich} {Ryshkov} {(On} his {70th~Birthday)}},
     journal = {Informatics and Automation},
     pages = {7--19},
     publisher = {mathdoc},
     volume = {239},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2002_239_a0/}
}