Algorithmica, to appear.

Computational Geometry: Theory and Applications, 44(2):110-120, 2011.

Algorithmica, 60(1):46-59, 2011.

Theory of Computing Systems, 45(3):486-496, 2009.

Algorithmica, 54(4):490-500, 2009.

Scientia Iranica, 16(1):1-7, 2009.

Information Processing Letters, 105(3):103-107, 2008.

In Proceedings of the 19th Annual European Symposium on Algorithms (ESA 2011), volume 6942 of Lecture Notes in Computer Science, pages 518-529, Saarbrücken, Germany, September 2011.

In Proceedings of the 23rd Canadian Conference on Computational Geometry (CCCG 2011), Toronto, Ontario, Canada, August 2011, to appear.

In Proceedings of the 17th Annual International Computing and Combinatorics Conference (COCOON 2011), volume 6842 of Lecture Notes in Computer Science, pages 567-578, Dallas, Texas, United States, August 2011.

In Proceedings of the 22nd Canadian Conference on Computational Geometry (CCCG 2010), pages 179-182, Winnipeg, Manitoba, Canada, August 2010.

In Proceedings of the 16th Annual International Computing and Combinatorics Conference (COCOON 2010), volume 6196 of Lecture Notes in Computer Science, pages 140-149, Nha Trang, Vietnam, July 2010.

In Proceedings of the 21st Canadian Conference on Computational Geometry (CCCG 2009), pages 83-86, Vancouver, Canada, August 2009.

In Proceedings of the 16th Annual European Symposium on Algorithms (ESA 2008), volume 5193 of Lecture Notes in Computer Science, pages 817–829, Karlsruhe, Germany, September 2008.

In Proceedings of the 20th Canadian Conference on Computational Geometry (CCCG 2008), pages 159-162, Montréal, Québec, Canada, August 2008.

In Proceedings of the 13th Annual International Computing and Combinatorics Conference (COCOON 2007), volume 4598 of Lecture Notes in Computer Science, pages 383-393, Banff, Alberta, Canada, July 2007.

In Proceedings of the 13th Annual International Computing and Combinatorics Conference (COCOON 2007), volume 4598 of Lecture Notes in Computer Science, pages 459-469, Banff, Alberta, Canada, July 2007.

In Proceedings of the 12th International CSI Computer Conference (CSICC 2007), pages 1328-1332, Tehran, Iran, February 2007.

In Proceedings of the 4th Workshop on Approximation and Online Algorithms (WAOA 2006), volume 4368 of Lecture Notes in Computer Science, pages 121-131, Zurich, Switzerland, September 2006.

In Proceedings of the 18th Canadian Conference on Computational Geometry (CCCG 2006), pages 139-142, Kingston, Ontario, Canada, August 2006.

In Proceedings of the 18th Canadian Conference on Computational Geometry (CCCG 2006), pages 47-50, Kingston, Ontario, Canada, August 2006.

In Proceedings of the 2006 IEEE International Conference on Robotics and Automation (ICRA 2006), pages 873-876, Orlando, Florida, United States, May 2006.

In Proceedings of the 7th CSI Computer Conference (CSICC 2002), pages 124-133, Tehran, Iran, February 2002. in Persian.

In Proceedings of the 6th CSI Computer Conference (CSICC 2001), pages 212-217, Isfahan, Iran, February 2001. in Persian.

In Proceedings of the 5th CSI Computer Conference (CSICC 2000), pages 132-140, Tehran, Iran, March 2000. in Persian.