@article{AM2_1978__18_136799,
     author = {L. Babai and W. Imrich},
     title = {Tournaments with given regular groups. {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {395--395},
     publisher = {mathdoc},
     volume = {18},
     year = {1978},
     url = {http://geodesic.mathdoc.fr/item/AM2_1978__18_136799/}
}