@article{120209, author = {Franti\v sek Krutsk\'y}, title = {Reducibility and correspondences of pure generalized grammars}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {27}, year = {1988}, pages = {63-84}, zbl = {0691.68078}, mrnumber = {1039884}, language = {en}, url = {http://dml.mathdoc.fr/item/120209} }
Krutský, František. Reducibility and correspondences of pure generalized grammars. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 27 (1988) pp. 63-84. http://gdmltest.u-ga.fr/item/120209/
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