William Y. C. Chen Xueliang Li Chao Wang Xiaoyan Zhang Linear Time Algorithms to the Minimum All-Ones Problem for Unicyclic and Bicyclic Graphs. 93-98 2004 17 Electronic Notes in Discrete Mathematics http://dx.doi.org/10.1016/j.endm.2004.03.018 db/journals/endm/endm17.html#ChenLWZ04