@proceedings {34981,
	title = {Heuristic improvement of traffic networks via directivity adjustment},
	journal = {Proceedings of the 25th. Conference on Statistics, Computer Science and Operations Research},
	year = {1990},
	pages = { 4.119-4.135},
	address = {Cairo, EGYPT},
	author = {S.M. Eid and M.A. Sultan and R.I. Badr and O. Hegazi}
}
