The following publications are possibly variants of this publication:
- On directable nondeterministic trapped automataBalázs Imreh, Csanád Imreh, Masami Ito. actaC, 16(1):37-45, 2003. [doi]
- On Monotonic Directable Nondeterministic AutomataBalázs Imreh, Csanád Imreh, Masami Ito. jalc, 8(3):539-547, 2003.
- On Commutative Directable Nondeterministic AutomataBalázs Imreh, Masami Ito, Magnus Steinby. BIRTHDAY 2003: 141-150
- On regular languages determined by nondeterministic directable automataBalázs Imreh, Masami Ito. actaC, 17(1):1-10, 2005. [doi]