@inbook{Thatcher1999b,
author = {Thatcher, A.R.},
title= {Katherine Plunket: A well documented supercentenarian in 1930},
year = {1999b},
editor = {Jeune, B.},
editor = {Vaupel, J.W. },
booktitle = {Validation of exceptional longevity},
address = {Odense},
publisher = {Odense University Press},
pages = {135--138},
}