@article{MZ_1953__59_169377,
     author = {Gerrit Bol},
     title = {\"Uber die {Fl\"achen,} bei denen die {Diagonalen} der {Vierseite} von {Demoulin} linearen {Kongruenzen} angeh\"oren.},
     journal = {Mathematische Zeitschrift},
     pages = {97--150},
     publisher = {mathdoc},
     volume = {59},
     year = {1953},
     zbl = {0051.12703},
     url = {http://geodesic.mathdoc.fr/item/MZ_1953__59_169377/}
}