An Optimal Algorithm for Solving the Searchlight Guarding Problem on Weighted Trees. - William C. K. Yen; C. Y. Tang (Inf. Sci., 1995)

An Optimal Algorithm for Solving the Searchlight Guarding Problem on Weighted Interval Graphs. - William C. K. Yen; C. Y. Tang (Inf. Sci., 1997)

An Optimal Algorithm for Solving the Searchlight Guarding Problem on Weighted Two-Terminal Series-Parallel Graphs. - William C. K. Yen; C. Y. Tang (Acta Informatica, 1999)

The searchlight guarding problem on weighted split graphs and weighted cographs. - William C. K. Yen; C. Y. Tang (Networks, 2000)