TY  - JOUR
AU  - S. S. Demidov
TI  - At the sharp turns of the 20th century European history
JO  - Čebyševskij sbornik
PY  - 2021
SP  - 403
EP  - 412
VL  - 22
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CHEB_2021_22_1_a27/
LA  - ru
ID  - CHEB_2021_22_1_a27
ER  -