@article{MZ_1969__111_171201,
     author = {Ascher Wagner},
     title = {Collineations of {Finite} {Projective} {Spaces} as {Permutations} on the {Sets} of {Dual} {Subspaces.}},
     journal = {Mathematische Zeitschrift},
     pages = {249--254},
     year = {1969},
     volume = {111},
     zbl = {0176.17802},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__111_171201/}
}