@incollection{MEM_2024_53_a6,
     author = {Gostev, Plamen},
     title = {One problem, many solutions},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {135--140},
     year = {2024},
     volume = {53},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2024_53_a6/}
}