@incollection{MEM_2020_49_a6,
     author = {Nikolov, Geno},
     title = {75 years from the birth of {Borislav} {Bojanov}},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {58--62},
     year = {2020},
     volume = {49},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2020_49_a6/}
}