TY  - JOUR
AU  - G. Sottas
TI  - On the positivity of ultraspherical type quadrature formulas with Jacobi abscissas.
JO  - Aequationes mathematicae
PY  - 1989
SP  - 10
EP  - 27
VL  - 38
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1989__38_1_137311/
ID  - AM2_1989__38_1_137311
ER  -