@article{MZ_1975__145_172284,
     author = {Albrecht Beutelspacher},
     title = {Partial {Spreads} in {Finite} {Projective} {Spaces} and {Partial} {Designs.}},
     journal = {Mathematische Zeitschrift},
     pages = {211--230},
     publisher = {mathdoc},
     volume = {145},
     year = {1975},
     zbl = {0297.50018},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__145_172284/}
}