Ceccherini-Silberstein, Tullio On the growth of linear languages. (English) Zbl 1084.68060 Adv. Appl. Math. 35, No. 3, 243-253 (2005). MSC: 68Q45 PDFBibTeX XMLCite \textit{T. Ceccherini-Silberstein}, Adv. Appl. Math. 35, No. 3, 243--253 (2005; Zbl 1084.68060) Full Text: DOI
Chepoi, Victor Graphs of some CAT(0) complexes. (English) Zbl 1019.57001 Adv. Appl. Math. 24, No. 2, 125-179 (2000). MSC: 57M07 20F67 PDFBibTeX XMLCite \textit{V. Chepoi}, Adv. Appl. Math. 24, No. 2, 125--179 (2000; Zbl 1019.57001) Full Text: DOI Link