1. Beiträge zur Begründung der transfiniten Mengenlehre;Cantor;Mathematische Annalen,1895
2. Partially ordered sets;Dushnik;American Journal of Mathematics,1941
3. On the dimension of orders;Hiraguchi;The Science Reports of the Kanazawa University,1955
4. Extensive measurement without an order relation;Holman;Philosophy of Science,1974
5. Foundations of measurement, vol. 1: Additive and polynomial representations;Krantz,1971