MAP20080025328 Analytic bounds and approximations for annuities and Asian options / Steven Vanduffel... [et al.] En: Insurance : mathematics and economics. - Oxford : Elsevier, 1990- = ISSN 0167-6687. - 27/06/2008 Tomo 42 Número 3 - 2008 I. Vanduffel, Steven . II. Title.