TY - BOOK AU - Paltanea Radu TI - Approximation theory using positive linear operators SN - 0817643508 (pbk) U1 - B114, P4 PY - 2004/// CY - Boston PB - Birkhauser KW - Approximation theory KW - Linear operators KW - Mathematics N1 - Bibliographical references 195-200p; Index 201-202p ER -