The following publications are possibly variants of this publication:
- Minimum cost source location problem with local 3-vertex-connectivity requirementsToshimasa Ishii, Hitoshi Fujita, Hiroshi Nagamochi. TCS, 372(1):81-93, 2007. [doi]
- The source location problem with local 3-vertex-connectivity requirementsToshimasa Ishii, Hitoshi Fujita, Hiroshi Nagamochi. DAM, 155(18):2523-2538, 2007. [doi]
- Minimum cost source location problem with vertex-connectivity requirements in digraphsHiroshi Nagamochi, Toshimasa Ishii, Hiro Ito. ipl, 80(6):287-293, 2001. [doi]
- Greedy Approximation for Source Location Problem with Vertex-Connectivity Requirements in Undirected GraphsToshimasa Ishii. isaac 2007: 29-40 [doi]
- Greedy approximation for the source location problem with vertex-connectivity requirements in undirected graphsToshimasa Ishii. jda, 7(4):570-578, 2009. [doi]