Hisashi Ikeda Naohiro Furukawa Masashi Koga Hiroshi Sako Hiromichi Fujisawa A Context-free Grammar-based Language Model for String Recognition. 149-163 2002 15 Int. J. Comput. Proc. Oriental Lang. 2 http://dx.doi.org/10.1142/S0219427902000613 db/journals/ijcpol/ijcpol15.html#IkedaFKSF02