@article{10_37236_9887,
     author = {Beata Casiday and Selvi Kara},
     title = {Betti numbers of weighted oriented graphs},
     journal = {The electronic journal of combinatorics},
     year = {2021},
     volume = {28},
     number = {2},
     doi = {10.37236/9887},
     zbl = {1465.05071},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/9887/}
}