Marats Golovkins Maksim Kravtsev Vasilijs Kravcevs On a class of languages recognizable by probabilistic reversible decide-and-halt automata. 1942-1951 2009 410 Theor. Comput. Sci. 20 http://dx.doi.org/10.1016/j.tcs.2009.01.042 db/journals/tcs/tcs410.html#GolovkinsKK09