TY - CHAP A1 - Kannisto, V. A1 - Jeune, B. A1 - Vaupel, J. T1 - Assessing the information on age at death of old persons in national vital statistics Y1 - 1999 A3 - Jeune, B. A3 - Vaupel, J.W. T2 - Validation of exceptional longevity CY - Odense PB - Odense University Press ER -