@article{ITA_1982__16_3_191_0, author = {Ross, Rockford and Winklmann, Karl}, title = {Repetitive strings are not context-free}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, volume = {16}, year = {1982}, pages = {191-199}, mrnumber = {686912}, zbl = {0489.68071}, language = {en}, url = {http://dml.mathdoc.fr/item/ITA_1982__16_3_191_0} }
Ross, Rockford; Winklmann, Karl. Repetitive strings are not context-free. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 16 (1982) pp. 191-199. http://gdmltest.u-ga.fr/item/ITA_1982__16_3_191_0/
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