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Citation: J. Albert et al., Normal form algorithms for extended context-free grammars, THEOR COMP, 267(1-2), 2001, pp. 35-47

Authors: Giammarresi, D Restivo, A

Citation: D. Giammarresi et A. Restivo, Extending formal languages hierarchies to higher dimensions, ACM C SURV, 31, 1999, pp. J1-J4

Authors: Giammarresi, D Montalbano, R

Citation: D. Giammarresi et R. Montalbano, Deterministic generalized automata, THEOR COMP, 215(1-2), 1999, pp. 191-208