Lila Kari Stavros Konstantinidis Elena Losseva Geoff Wozniak Sticky-free and overhang-free DNA languages. 119-157 2003 40 Acta Inf. 2 http://dx.doi.org/10.1007/s00236-003-0118-7 db/journals/acta/acta40.html#KariKLW03