MAP20140000913 Cheung, Ka Chun General lower bounds on convex functionals of aggregate sums / Ka Chun Cheung, Ambrose Lo En: Insurance : mathematics and economics. - Oxford : Elsevier, 1990- = ISSN 0167-6687. - 04/11/2013 Volumen 53 Número 3 - noviembre 2013 I. Title.