TY  - JOUR
AU  - D. G. Meshchaninov
TI  - Some families of closed classes in~$P_k$ defined by additive formulas
JO  - Diskretnaya Matematika
PY  - 2021
SP  - 100
EP  - 116
VL  - 33
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DM_2021_33_2_a7/
LA  - ru
ID  - DM_2021_33_2_a7
ER  -