Jiri Sgall. Solution of a covering problem related to labelled tournaments. Journal of Graph Theory, 23(2):111-118, 1996. [doi]
@article{Sgall96-0,
title = {Solution of a covering problem related to labelled tournaments},
author = {Jiri Sgall},
year = {1996},
doi = {10.1002/(SICI)1097-0118(199610)23:2<111::AID-JGT2>3.0.CO;2-W},
url = {http://dx.doi.org/10.1002/(SICI)1097-0118(199610)23:2<111::AID-JGT2>3.0.CO;2-W},
researchr = {https://researchr.org/publication/Sgall96-0},
cites = {0},
citedby = {0},
journal = {Journal of Graph Theory},
volume = {23},
number = {2},
pages = {111-118},
}