Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1952__7_140575, author = {Alexander Aigner}, title = {Eine kombinatorische {Systematik} der {Punktmengen.}}, journal = {Elemente der Mathematik}, pages = {11--14}, publisher = {mathdoc}, volume = {7}, year = {1952}, zbl = {0046.05302}, url = {http://geodesic.mathdoc.fr/item/ELMA_1952__7_140575/} }
Alexander Aigner. Eine kombinatorische Systematik der Punktmengen.. Elemente der Mathematik, Tome 7 (1952), pp. 11-14. http://geodesic.mathdoc.fr/item/ELMA_1952__7_140575/