1. W. Chin and S. Ntafos, Optimum zoo-keeper routes, Congressus Numerantium, to appear.
2. Watchman Routes in Simple Polygons;Chin,1987
3. Triangulating simple polygons and equivalent problems;Fournier;ACM Trans. Graphics,1984
4. Path Planning in 0/1 Weighted Regions and Applications;Gewali,1987
5. Linear time algorithms for visibility and shortest path problems inside simple polygons;Guibas;Proc. ACM Symp. on Computational Geometry,1986