@article { ISI:A1990EF11200022, title = {Attribute Grammar Specification for a natural-language understanding interface}, journal = {Lecture Notes in Computer Science}, volume = {461}, year = {1990}, pages = {313-326}, publisher = {{Springer Verlag}}, author = {Z. Alexin and Tibor Gyim{\'o}thy and T. Horvath and K. Fabricz} }