Zweifel, Peter. Bonus options in health insurance / by Peter Zweifel, with the assistance of Otto Waser. - Boston, Mass. : Kluwer Academic Publishers, 1992. - xii, 141 p. : il. - Developments in health economics in health economics and public policy, . ISBN: 0-7923-1722-x Subjects--Topical Terms: Seguro de Salud --Alemania. Dewey Class. No.: 368.3´82 / Z97b