@article{1093883248, author = {Myers, Russell W.}, title = {Complexity of model-theoretic notions.}, journal = {Notre Dame J. Formal Logic}, volume = {21}, number = {1}, year = {1980}, pages = { 656-658}, language = {en}, url = {http://dml.mathdoc.fr/item/1093883248} }
Myers, Russell W. Complexity of model-theoretic notions.. Notre Dame J. Formal Logic, Tome 21 (1980) no. 1, pp. 656-658. http://gdmltest.u-ga.fr/item/1093883248/