@incollection{MEM_2021_50_a22,
     author = {Aplakova, Nadezhda},
     title = {Bridging the gap between school and competitive mathematics: an example},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {203--208},
     year = {2021},
     volume = {50},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MEM_2021_50_a22/}
}