TY  - BOOK
AU  - Singer, Ivan,
TI  - The theory of best approximation and functional analysis
T2  - Regional conference sers. in applied mathematics
AV  - QA320 S56
PY  - 1974///
CY  - Philadelphia
PB  - Society for industrial and applied mathematics
KW  - Análisis funcional
KW  - Teoría de la aproximación
ER  -