By Zacks S.   Levikson B.   in Scandinavian Actuarial Journal

ISSN:0346-1238|2004|1|14-27

Taylor & Francis Ltd‎(2004)‎

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By Frostig E.   Haberman S.   Levikson B.   in Scandinavian Actuarial Journal

ISSN:0346-1238|2003|2|136-152

Taylor & Francis Ltd‎(2003)‎

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