@article{1102734397, author = {S\o reng, Jan}, title = {Symmetric shift registers. II.}, journal = {Pacific J. Math.}, volume = {103}, number = {2}, year = {1982}, pages = { 203-234}, language = {en}, url = {http://dml.mathdoc.fr/item/1102734397} }
Søreng, Jan. Symmetric shift registers. II.. Pacific J. Math., Tome 103 (1982) no. 2, pp. 203-234. http://gdmltest.u-ga.fr/item/1102734397/