TY  - JOUR
AU  - Nurlan D. Markhabatov
TI  - Approximations of acyclic graphs
JO  - The Bulletin of Irkutsk State University. Series Mathematics
PY  - 2022
SP  - 104
EP  - 111
VL  - 40
UR  - http://geodesic.mathdoc.fr/item/IIGUM_2022_40_a7/
LA  - en
ID  - IIGUM_2022_40_a7
ER  -