@incollection{MEM_2020_49_a26,
     author = {Stanev, Martin},
     title = {Locus of the centroids of the equilateral triangles inscribed in a parabola},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {234--238},
     year = {2020},
     volume = {49},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2020_49_a26/}
}