Anastassiou, George A., Approximation by multivariate singular integrals / George A. Anastassiou. - New York : Springer, 2011. - x, 79 p. ; - SpringerBriefs in mathematics, 2191-8198 . ISBN: 9781461405887 (pbk. : alk. paper) 1461405882 (pbk. : alk. paper) 9781461405894 (eISBN) Subjects--Topical Terms: Approximation theory.Multivariate analysis.Singular integrals. Universal Decimal Class. No.: 517.988.8 / ANA