@ARTICLE{DasJue_j1991, author = {J{\"u}rgen~Dassow and Helmut~J{\"u}rgensen}, title = {Deterministic soliton automata with a single exterior node}, journal = tcs, year = 1991, volume = 84, number = 2, pages = {281--292}, url = {http://dx.doi.org/10.1016/0304-3975(91)90164-W} }