MAP20110026110 Cheung, Eric C.K. A Generalized penalty function in Sparre Andersen risk models with surplus-dependent premium / Eric C.K. Cheung En: Insurance : mathematics and economics. - Oxford : Elsevier, 1990- = ISSN 0167-6687. - 03/05/2011 Tomo 48 Número 3 - 2011