1. IEEE Transactions on Image Processing;G Sharma,1997
2. Pattern Recognition;HD Cheng,2001
3. Bloch I., Maître H., Fuzzy mathematical morphologies: a comparative study, Pattern Recognition, PR-9(28), 1995, pp. 1341–1387.
4. IEEE Transactions on Pattern Analysis and Machine Intelligence;C Botte-Lecocq,1993
5. Devijver P.A., KittlerJ., Pattern recognition: a statistical approach, PrenticeHall — Englewood Cliffs, New Jersey, 1982.