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Doraiswamy, Harish and Natarajan, Vijay (2009) Efficient algorithms for computing Reeb graphs. In: Computational Geometry, 42 (6-7). pp. 606-616.
Ghosh, Subir Kumar and Maheshwari, Anil and Pal, Sudebkumar Prasant and Saluja, Sanjeev and Madhavan, Veni CE (1993) Characterizing and recognizing weak visibility polygons. In: Computational Geometry, 3 (4). pp. 213-233.