MAP20080025151 Baumann, Roger T. Pension funds as institutions for intertemporal risk transfer / Roger T. Baumann, Heinz H. Müller En: Insurance : mathematics and economics. - Oxford : Elsevier, 1990- = ISSN 0167-6687. - 27/06/2008 Tomo 42 Número 3 - 2008 I. Müller, Heinz H. . II. Título.