Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1990__31_1_a5, author = {Fri\v{c}, Roman}, title = {On plane topologies with high sequential order}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {33--36}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {1990}, mrnumber = {1056168}, zbl = {0697.54014}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a5/} }
Frič, Roman. On plane topologies with high sequential order. Commentationes Mathematicae Universitatis Carolinae, Tome 31 (1990) no. 1, pp. 33-36. http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a5/