Shunsuke Inenaga Hiromasa Hoshino Ayumi Shinohara Masayuki Takeda Setsuo Arikawa Giancarlo Mauri Giulio Pavesi On-line construction of compact directed acyclic word graphs. 156-179 2005 146 Discrete Applied Mathematics 2 http://dx.doi.org/10.1016/j.dam.2004.04.012 db/journals/dam/dam146.html#InenagaHSTAMP05