@article{10_37236_9336,
     author = {Raphael Yuster},
     title = {Covering small subgraphs of (hyper)tournaments with spanning acyclic subgraphs},
     journal = {The electronic journal of combinatorics},
     year = {2020},
     volume = {27},
     number = {4},
     doi = {10.37236/9336},
     zbl = {1450.05071},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/9336/}
}