title: [Rotation invariance in the recognition of letters].
mesh_terms: D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D011930:Reaction Time
vernacular_title: Untersuchungen zur Rotationsinvarianz bei der Erkennung von Buchstaben.