@article{JAC_2005__22_3_a2,
     author = {Cohen, Arjeh M. and Postma, E.J.},
     title = {Covers of point-hyperplane graphs},
     journal = {Journal of Algebraic Combinatorics},
     pages = {317--329},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {2005},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/JAC_2005__22_3_a2/}
}