@incollection{MEM_2021_50_a38,
     author = {Todorova, Neli and Krasteva, Desislava},
     title = {Computer modeling in support of mathematics in the initial stage},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {331--336},
     year = {2021},
     volume = {50},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2021_50_a38/}
}