@misc{VYURU_2013_6_1_a12,
     title = {Yuriy {Kovalev} (to the $60^{th}$ anniversary)},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matemati\v{c}eskoe modelirovanie i programmirovanie},
     pages = {139--141},
     year = {2013},
     volume = {6},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VYURU_2013_6_1_a12/}
}