@article{10_4153_CJM_1967_083_6,
     author = {Bachmann, F.},
     title = {Der {H\"ohensatz} in der {Geometrie} {Involutorischer} {Gruppenelemente}},
     journal = {Canadian journal of mathematics},
     pages = {895--903},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-083-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-083-6/}
}