TY  - JOUR
AU  - G. V. Kuz'mina
TI  - The module method and some extremal problems in the class~$\Sigma(r)$
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2013
SP  - 136
EP  - 152
VL  - 418
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2013_418_a8/
LA  - ru
ID  - ZNSL_2013_418_a8
ER  -