1. Godlewski, G., Piasecki, M., Sas, J.: Application of syntactic properties to three-level recognition of Polish hand-written medical texts. In: Bulterman, D., Brailsford, D.F. (eds.) Proc. of the 2005 ACM Symposium on Document Engineering, ACM Press, New York (2006)
2. Piasecki, M., Godlewski, G., Pejcz, J.: Corpus of medical texts and tools. Proceedings of Medical Informatics and Technologies, Silesian University of Technology 2006, 281–286 (2006)
3. Lecture Notes in Bioinformatics;M. Piasecki,2006
4. Manning, C.D., Schütze, H.: Foundations of Statistical Natural Language Processing. The MIT Press, Cambridge (2001)
5. Harris, Z.S.: Mathematical Structures of Language. Interscience Publishers, New York (1968)