@inproceedings{paperid:1038798, author = {Nouri Baygi, Mostafa and Alireza Zarei and Mohammad Ghodsi}, title = {Weak Visibility of Two Objects in Planar Polygonal Scenes}, booktitle = {2007 International Conference on Computational Science and its Applications}, year = {2007}, location = {کوالالامپور}, keywords = {Computational geometry; weak visibility; 3sum-hard problems; object inter-visibility}, }