@article{10_1017_S2040618500035139,
     author = {Moon, J. W.},
     title = {On minimal n-universal graphs},
     journal = {Glasgow mathematical journal},
     pages = {32--33},
     year = {1965},
     volume = {7},
     number = {1},
     doi = {10.1017/S2040618500035139},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S2040618500035139/}
}