1. K. Sikkel. Parsing Schemata. PhD thesis, Univ. of Twente, The Netherlands, 1993.
2. M. Vilares. Efficient Incremental Parsing for Context-Free Languages. PhD thesis, University of Nice. ISBN 2-7261-0768-0, France, 1992.
3. Lect Notes Comput Sci;M. Vilares,2001