Joong Chae Na Namhee Kim Jeong Seop Sim Dong Kyue Kim Improving on-line construction of two-dimensional suffix trees for square matrices. 504-508 2009 109 Inf. Process. Lett. 10 http://dx.doi.org/10.1016/j.ipl.2009.01.026 db/journals/ipl/ipl109.html#NaKSK09