TY  - JOUR
AU  - Ś. Ząbek
TI  - On a variational estimation of error
JO  - Applicationes Mathematicae
PY  - 1972
SP  - 85
EP  - 97
VL  - 13
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/am-13-1-85-97/
DO  - 10.4064/am-13-1-85-97
LA  - en
ID  - 10_4064_am_13_1_85_97
ER  -