TY  - JOUR
AU  - Bouyuklieva, Stefka
TI  - Preface
JO  - Mathematics and Education in Mathematics
PY  - 2022
SP  - 5
EP  - 6
VL  - 51
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MEM_2022_51_a20/
LA  - bg
ID  - MEM_2022_51_a20
ER  -