@article{VYURV_2019_8_4_a4,
     author = {N. S. Silkina and L. B. Sokolinskiy},
     title = {Structural-hierarchical didactic model of e-learning},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a Vy\v{c}islitelʹna\^a matematika i informatika},
     pages = {56--83},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VYURV_2019_8_4_a4/}
}