On the Relation between Ambiguity and Nondeterminism in Finite Automata Jonathan Goldstine Hing Leung Detlef Wotschke 261-270 Inf. Comput. October 1992 100 2 db/journals/iandc/iandc100.html#GoldstineLW92 http://dx.doi.org/10.1016/0890-5401(92)90014-7