Atanasiu, A.; Martín-Vide, C.; Mitrana, Victor On the sentence valuation in a semiring. (English) Zbl 1024.68063 Inf. Sci. 151, 107-124 (2003). MSC: 68Q45 68Q70 16Y60 PDFBibTeX XMLCite \textit{A. Atanasiu} et al., Inf. Sci. 151, 107--124 (2003; Zbl 1024.68063) Full Text: DOI
Atanasiu, Adrian; Martín-Vide, Carlos; Mateescu, Alexandru On the injectivity of the Parikh matrix mapping. (English) Zbl 0997.68075 Fundam. Inform. 49, No. 4, 289-299 (2002). MSC: 68Q45 PDFBibTeX XMLCite \textit{A. Atanasiu} et al., Fundam. Inform. 49, No. 4, 289--299 (2002; Zbl 0997.68075)
Atanasiu, Adrian; Martín-Vide, Carlos Recursive calculus with membranes. (English) Zbl 0997.68052 Fundam. Inform. 49, No. 1-3, 45-59 (2002). MSC: 68Q10 68Q85 68Q45 03D20 PDFBibTeX XMLCite \textit{A. Atanasiu} and \textit{C. Martín-Vide}, Fundam. Inform. 49, No. 1--3, 45--59 (2002; Zbl 0997.68052)