Systematic Approach to Reduction and Minimization in Automata and System Theory.

Hartmut Ehrig Hans-Jörg Kreowski Systematic Approach to Reduction and Minimization in Automata and System Theory. 269-304 1976 12 J. Comput. Syst. Sci. 3 db/journals/jcss/jcss12.html#EhrigK76 http://dx.doi.org/10.1016/S0022-0000(76)80002-5