%0 Journal Article
%A Petrov, Philip
%A Ninova, Julia
%T In memoriam of Prof. Ivan Gantchev Donev
%J Mathematics and Education in Mathematics
%D 2023
%P 101-133
%V 52
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MEM_2023_52_a9/
%G bg
%F MEM_2023_52_a9