TY  - JOUR
AU  - F. Peherstorfer
AU  - P. Yuditskii
TI  - Uniform approximation of $sgn(x)$ by rational functions with prescribed poles
JO  - Žurnal matematičeskoj fiziki, analiza, geometrii
PY  - 2007
SP  - 95
EP  - 108
VL  - 3
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/JMAG_2007_3_1_a5/
LA  - en
ID  - JMAG_2007_3_1_a5
ER  -