The following publications are possibly variants of this publication:
- Vertex Guarding in Weak Visibility PolygonsPritam Bhattacharya, Subir Kumar Ghosh, Bodhayan Roy. caldam 2015: 45-57 [doi]
- Characterizing and Recognizing Weak Visibility PolygonsSubir Kumar Ghosh, Anil Maheshwari, Sudebkumar Prasant Pal, Sanjeev Saluja, C. E. Veni Madhavan. comgeo, 3:213-233, 1993.
- Guard Placement for Maximizing L-Visibility Exterior to a Convex PolygonDebabrata Bardhan, Sasanka Roy, Sandip Das. ijcga, 19(4):357-370, 2009. [doi]