TY  - BOOK
AU  - Freeden W
AU  -  Gervens T
AU  -  Schreiner M
TI  - Constructive approximation on the sphere : With applications to geomthematics
U1  - B13:22, N8 
PY  - 1998///
CY  - Oxford
PB  - Clarendon Press      
KW  - Gift
ER  -