Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1990__40_4_a4, author = {Czyzowicz, Jurek and Pelc, Andrzej and Rival, Ivan}, title = {Planar ordered sets of width two}, journal = {Mathematica slovaca}, pages = {375--388}, publisher = {mathdoc}, volume = {40}, number = {4}, year = {1990}, mrnumber = {1120968}, zbl = {0753.06001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1990__40_4_a4/} }
Czyzowicz, Jurek; Pelc, Andrzej; Rival, Ivan. Planar ordered sets of width two. Mathematica slovaca, Tome 40 (1990) no. 4, pp. 375-388. http://geodesic.mathdoc.fr/item/MASLO_1990__40_4_a4/