Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DM_1997_9_2_a14, author = {L. P. Lisovik}, title = {$\Sigma TC$-generated languages and relative equivalence problems}, journal = {Diskretnaya Matematika}, pages = {139--160}, publisher = {mathdoc}, volume = {9}, number = {2}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DM_1997_9_2_a14/} }
L. P. Lisovik. $\Sigma TC$-generated languages and relative equivalence problems. Diskretnaya Matematika, Tome 9 (1997) no. 2, pp. 139-160. http://geodesic.mathdoc.fr/item/DM_1997_9_2_a14/