@article{10_37236_4671,
     author = {Jorge Alberto Olarte},
     title = {Gammoids, pseudomodularity and flatness degree},
     journal = {The electronic journal of combinatorics},
     year = {2015},
     volume = {22},
     number = {1},
     doi = {10.37236/4671},
     zbl = {1308.05032},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4671/}
}