RT Book, Section T1 Approximation of differentiable functions A1 Llavona, José G. A2 Rota, Gian-Carlo PB Academic Press SN 0-12-599150-9 YR 1979 FD 1979 LK https://hdl.handle.net/20.500.14352/65479 UL https://hdl.handle.net/20.500.14352/65479 DS Docta Complutense RD 12 abr 2025