Topological Ordering of a List of Randomly-Numbered Elements of a Network A network of directed line segments free of circular elements is assumed. The lines are identified by their terminal nodes and the nodes are assumed to be numbered by a non-topological system. Given a list of these lines in numeric order, a simple technique can be used to create at high speed a list in topological order. CACM April, 1961 Lasser, D. J. CA610401 JB March 17, 1978 12:17 AM 1050 5 367 1226 5 367 367 5 367 367 5 367 367 5 367 441 5 367 758 5 367 849 6 367 106 6 367 209 6 367 367 6 367 367 6 367 367 6 367 367 6 367 441 6 367 627 6 367