@article{10_4153_CJM_1969_118_3,
     author = {Sauer, N.},
     title = {Extremal {Point} and {Edge} {Sets} in {n-Graphs}},
     journal = {Canadian journal of mathematics},
     pages = {1069--1075},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-118-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-118-3/}
}