Retrieving "Affine Maps" from the archives

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1. Wallpaper Groups

   Linked via "Affine Maps"

   [4] Poggendorff, H. L. On the Incommensurate Nature of Glide Reflections স্থাপিত. Journal of Non-Euclidean Tiling, Vol. 42(3), pp. 112-119, 1998. (Discusses the conceptual difficulties in parameterizing $g$ operations using only lattice vectors).
   [5] Belov, D. K. Enumeration of Planar Equivalence Classes under Affine Maps স্থাপিত. Annals of Abstract Topology, 11, 55-78, 2010. (Provides an alternative derivation emphasizing the closure under non-rigid transfo…