1. The Design and Analysis of Computer Algorithms;Aho,1974
2. On embedding graphs in the sphere;Auslander;J. Math. Mech.,1961
3. Testing for the consecutive ones property, interval graphs, and graph planarity using PQ-tree algorithms;Booth;J. Comput. System. Sci.,1976
4. Algorithm of construction of maximal flow in networks with complexity of O(V2 √E) operations (in Russian);Cherkasky;Math. Methods of Solution of Economical Problems,1977