@incollection{MEM_2023_52_a2,
     author = {Yanev, Nikolay},
     title = {A. {N.} {Kolmogorov} {\textendash} 120th anniversary},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {25--36},
     year = {2023},
     volume = {52},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2023_52_a2/}
}