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Reference11 articles.
1. H. C. Wilkie, ?On non-Euclidean crystallographic groups,? Math. Z.,91, No. 2, 87?102 (1966).
2. R. Fricke and F. Klein, Vorlesungen über die Theorie der automorphen Funktionen, Leipzig, Vol. 1, (1926), pp. 285?315.
3. L. Keen, ?Canonical polygons for finitely generated fuchsian groups,? Acta Math.,115, Nos. 1?2, 1?16 (1966).
4. A. M. Macbeath, ?The classification of non-Euclidean plane crystallographic groups,? Can. J. Math.,19, No. 6, 1192?1206 (1967).
5. L. Bers, ?Uniformization by Beltrami equations,? Commun. Pure Appl. Math.,14, 215?228 (1961).