Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1993_23_2a_25, author = {Acketa Dragan M.}, title = {On rank 2 greedoids}, journal = {Novi Sad Journal of Mathematics}, pages = {289-303}, publisher = {mathdoc}, volume = {23}, number = {2}, year = {1993}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1993_23_2a_25/} }
Acketa Dragan M. On rank 2 greedoids. Novi Sad Journal of Mathematics, Tome 23 (1993) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_1993_23_2a_25/