@article{1102784091, author = {S\o reng, Jan}, title = {Symmetric shift registers.}, journal = {Pacific J. Math.}, volume = {85}, number = {2}, year = {1979}, pages = { 201-229}, language = {en}, url = {http://dml.mathdoc.fr/item/1102784091} }
Søreng, Jan. Symmetric shift registers.. Pacific J. Math., Tome 85 (1979) no. 2, pp. 201-229. http://gdmltest.u-ga.fr/item/1102784091/