@article{10_37236_4872,
     author = {Edita M\'a\v{c}ajov\'a and Martin \v{S}koviera},
     title = {Characteristic flows on signed graphs and short circuit covers},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {3},
     doi = {10.37236/4872},
     zbl = {1344.05066},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4872/}
}