TY  - JOUR
AU  - Bellman, Richard
TI  - A note on differential approximation and orthogonal polynomials.
JO  - Bollettino della Unione matematica italiana
PY  - 1963
SP  - 363
EP  - 366
VL  - 18
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BUMI_1963_3_18_4_a3/
LA  - en
ID  - BUMI_1963_3_18_4_a3
ER  -