Adrian Horia Dediu Shunsuke Inenaga Carlos Martín-Vide Language and Automata Theory and Applications - 5th International Conference, LATA 2011, Tarragona, Spain, May 26-31, 2011. Proceedings 6638 2011 http://dx.doi.org/10.1007/978-3-642-21254-3 978-3-642-21253-6 LATA Lecture Notes in Computer Science Springer db/conf/lata/lata2011.html