Barbut, M. & Monjardet, B.: Ordre et classification : algèbre et combinatoire. Paris: Hachette, 1970
[Volltext]
@book{barbut1970ordre,
author = {Barbut, Marc and Monjardet, Bernard},
title = {Ordre et classification : algèbre et combinatoire},
publisher = {Hachette},
address = {Paris},
year = {1970},
url = {http://www.worldcat.org/title/ordre-et-classification-algebre-et-combinatoire/oclc/760991890?referer=di&ht=edition},
keywords = {classification, fca, ordre}
}