TY  - JOUR
AU  - Ryszard Smarzewski
TI  - On characterization of non-linear best Chebyshev approximations
JO  - Colloquium Mathematicum
PY  - 1980
SP  - 111
EP  - 116
VL  - 43
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-43-1-111-116/
DO  - 10.4064/cm-43-1-111-116
LA  - en
ID  - 10_4064_cm_43_1_111_116
ER  -