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View all- Fernau HStiebe R(2011)On the expressive power of valences in cooperating distributed grammar systemsComputation, cooperation, and life10.5555/2017728.2017739(90-106)Online publication date: 1-Jan-2011
- Greibach S(1981)Formal LanguagesIEEE Annals of the History of Computing10.1109/MAHC.1981.100063:1(14-41)Online publication date: 1-Jan-1981
- Greibach S(1979)Formal languagesProceedings of the 20th Annual Symposium on Foundations of Computer Science10.1109/SFCS.1979.19(66-90)Online publication date: 29-Oct-1979