@article{MO_2020_93_1_a2,
     author = {V. K. Gavrilov},
     title = {About the task {``Knights} of the {King} {Arthur''} for developing multilevel tasks},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {24--27},
     publisher = {mathdoc},
     volume = {93},
     number = {1},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2020_93_1_a2/}
}