@incollection{MEM_2022_51_a3,
     author = {Paneva-Konovska, Jordanka and Kiryakova, Virginia and Davidov, Johann},
     title = {Ninetieth anniversary of professor {Peter} {Rusev}},
     booktitle = {},
     series = {Mathematics and Education in Mathematics},
     pages = {32--40},
     year = {2022},
     volume = {51},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2022_51_a3/}
}