1. Wikipedia,
http://wikipedia.fr
2. Impedovo, D., Pirlo, G.: Automatic Signature Verification: The State of the Art. Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews 38(5), 609–635 (2008)
3. Plamondon, R., Srihari, S.N.: On-Line and Off-Line Handwriting Recognition: A Comprehensive Survey. IEEE Transaction on Pattern Analysis and Machine Intelligence 22(1) (2000)
4. Sabourin, R., Genest, G.: Définition et évaluation d’une famille de représentations pour la vérification hors-ligne des signatures. Traitement du Signal 12(6) (1995)
5. Ahmad, S.M.S., Shakil, A., Ahmad, A.R., Agil, M., Balbed, M., Anwar, R.M.: SIGMA- A Malaysian Signatures Database. In: International Conference on Computer Systems and Applications, Doha, pp. 919–920 (2008)