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Nets satisfying the quadrangle condition [Abstract of thesis] Jaromír Baštinec (1988) Commentationes Mathematicae Universitatis Carolinae
Non-existence of Cartesian groups of order 2 p m Ivan Studnička (1972) Commentationes Mathematicae Universitatis Carolinae
Non-Existence of Steiner Systems of Type S (d - 1, d, 2d). Edward F. jr. Assmus, M.T. Hermoso (1974) Mathematische Zeitschrift
Note on Dembowski' s Groups of Collineations. Ralph Hugh Francis Denniston (1968/1969) Mathematische Zeitschrift
Note on the theory of independence in continuous geometries Henry Francis Joseph Löwig (1975) Czechoslovak Mathematical Journal