@misc{MM_2015_27_8_a9,
     title = {Nikolay {Nikolaevich} {Kalitkin} (on his 80th birthday)},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {135--136},
     publisher = {mathdoc},
     volume = {27},
     number = {8},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2015_27_8_a9/}
}