Xing Jiang Hui Xiong Chen Wang Ah-Hwee Tan Mining globally distributed frequent subgraphs in a single labeled graph. 1034-1058 2009 68 Data Knowl. Eng. 10 http://dx.doi.org/10.1016/j.datak.2009.04.008 db/journals/dke/dke68.html#JiangXWT09