@article{10_1155_S0161171203302170,
     author = {Leroux, Philippe},
     title = {An algebraic framework of weighted directed graphs.},
     journal = {International Journal of Mathematics and Mathematical Sciences},
     pages = {3657},
     publisher = {mathdoc},
     volume = {2003},
     number = {58},
     year = {2003},
     doi = {10.1155/S0161171203302170},
     zbl = {1031.05061},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1155/S0161171203302170/}
}