@article{01751280, title = {On blockers in bounded posets.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {581-588}, doi = {10.1155/S0161171201020087}, zbl = {1006.06002}, language = {en}, url = {http://dml.mathdoc.fr/item/01751280} }
Matveev, Andrey O. On blockers in bounded posets.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 581-588. doi : 10.1155/S0161171201020087. http://gdmltest.u-ga.fr/item/01751280/