@article{03978391, title = {A topology for automata. II.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {425-428}, doi = {10.1155/S0161171286000546}, zbl = {0605.68042}, language = {en}, url = {http://dml.mathdoc.fr/item/03978391} }
Srivastava, Arun K.; Shukla, Wagish. A topology for automata. II.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 425-428. doi : 10.1155/S0161171286000546. http://gdmltest.u-ga.fr/item/03978391/