http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
methodological studies of demographic crises in the past = Les grandes mortalites : etude methodologique des crises demographiques du passe
edited by Hubert Charbonneau, Andre Larose, with contributions by Paul Vauthier Adams [and others].