1. 1. Aho, Alfred V., Sethi Ravi, Ullman Jeffrey D., Compilers: Principles, Techniques, and Tools, Addison Wesley, (2001).
2. 2. Wang, Andy Ju An., Qian, Kai., Component-Oriented Programming, John Wiley & Sons, (2005).
3. 3. Salomaa, A., Formal Languages, New York, Academic Press, (1973).
4. 4. Păun Gh., Probleme actuale in teoria limbajelor formale, Editura Academiei, (1983).