Quantum Finite One-Counter Automata. - Maksim Kravtsev (SOFSEM, 1999)

Quantum versus Probabilistic One-Way Finite Automata with Counter. - Richard F. Bonner; Rusins Freivalds; Maksim Kravtsev (SOFSEM, 2001)

Probabilistic Reversible Automata and Quantum Automata. - Marats Golovkins; Maksim Kravtsev (COCOON, 2002)

On a class of languages recognizable by probabilistic reversible decide-and-halt automata. - Marats Golovkins; Maksim Kravtsev; Vasilijs Kravcevs (Theor. Comput. Sci., 2009)

Quantum Finite Automata and Probabilistic Reversible Automata: R-trivial Idempotent Languages. - Marats Golovkins; Maksim Kravtsev; Vasilijs Kravcevs (MFCS, 2011)