@article{ITA_1999__33_3_259_0, author = {Borchert, Bernd and Kuske, Dietrich and Stephan, Frank}, title = {On existentially first-order definable languages and their relation to NP}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, volume = {33}, year = {1999}, pages = {259-269}, mrnumber = {1728426}, zbl = {0949.03035}, language = {en}, url = {http://dml.mathdoc.fr/item/ITA_1999__33_3_259_0} }
Borchert, Bernd; Kuske, Dietrich; Stephan, Frank. On existentially first-order definable languages and their relation to NP. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 33 (1999) pp. 259-269. http://gdmltest.u-ga.fr/item/ITA_1999__33_3_259_0/
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