Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1967__17_4_a4, author = {Zn\'am, \v{S}tefan}, title = {On $k${-Thin} {Sets} and $n${-Extensive} {Graphs}}, journal = {Mathematica slovaca}, pages = {297--307}, publisher = {mathdoc}, volume = {17}, number = {4}, year = {1967}, mrnumber = {0232699}, zbl = {0173.01901}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1967__17_4_a4/} }
Znám, Štefan. On $k$-Thin Sets and $n$-Extensive Graphs. Mathematica slovaca, Tome 17 (1967) no. 4, pp. 297-307. http://geodesic.mathdoc.fr/item/MASLO_1967__17_4_a4/