TY  - JOUR
AU  - Adrian Królak
TI  - A Remark on Variational Principles of
 Choban, Kenderov and Revalski
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2013
SP  - 257
EP  - 261
VL  - 61
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba61-3-7/
DO  - 10.4064/ba61-3-7
LA  - en
ID  - 10_4064_ba61_3_7
ER  -