%0 Generic %E Kuich, Werner, %E Rozenberg, Grzegorz. %E Salomaa, Arto. %@ 3540434534 %T Developments in language theory : 5th international conference, DLT 2001, Wien, Austria, July 16-21, 2001 : revised papers / %U http://link.springer-ny.com/link/service/series/0558/tocs/t2295.htm