1. Koffka, K.: Principles of Gestalt Psychology. Harcourt, New York (1935)
2. Kohler, W.: Gestalt Psychology. Liveright, New York (1929)
3. Wertheimer, M.: Laws of Organization in Perceptual Forms, vol. 4. Psycologische Forschung (1923) Translation published in Ellis, W. (1938)
4. Lowe, D.G.: Perceptual Organization and Visual Recognition. Kluwer, Boston (1985)
5. Carreira, M., Mirmehdi, M., Thomas, B., Penas, M.: Perceptual primitives from an extended 4D Hough transform. Image and Vision Computing 20, 969–980 (2002)