1. S. Even and R. E. Tarjan, Network flow and testing graph connectivity,SIAM J. Comput. 4 (1975), 507–518.
2. Z. Galil, Finding the vertex connectivity of graphs,SIAM J. Comput. 9 (1980), 197–199.
3. M. R. Garey and D. S. Jhonson,Computer and Intractability, A Guide to the Theory of NP-completeness, Freeman, San Francisco, 1979.
4. D. W. Matula, Determining edge connectivity inO(nm),Proceedings of the 28th Symposium on Foundations of Computer Science (1987), pp. 249–251.
5. H. Nagamochi and T. Ibaraki, Linear time algorithms for findingk-edge-connected andk-node-connected spanning subgraphs, Technical Report #89006, Department of Applied Mathematics and Physics, Faculty of Engineering, Kyoto University (1989).