@article{MZ_1982__181_173243,
     author = {Aiden A. Bruen and Joseph Adolphe Thas},
     title = {Hyperplane {Coverings} and {Blocking} {Sets.}},
     journal = {Mathematische Zeitschrift},
     pages = {407--410},
     publisher = {mathdoc},
     volume = {181},
     year = {1982},
     zbl = {0491.51013},
     url = {http://geodesic.mathdoc.fr/item/MZ_1982__181_173243/}
}