TY  - JOUR
AU  - V. P. Motornyi
AU  - O. V. Motornaya
TI  - On the best $L_1$-approximation by algebraic polynomials to truncated powers and to classes of functions with $L_1$-bounded derivative
JO  - Izvestiya. Mathematics 
PY  - 1999
SP  - 561
EP  - 582
VL  - 63
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1999_63_3_a5/
LA  - en
ID  - IM2_1999_63_3_a5
ER  -