Paola Bonizzoni Clelia de Felice Giancarlo Mauri Rosalba Zizza Regular Languages Generated by Reflexive Finite Splicing Systems. 134-145 2003 conf/dlt/2003 Developments in Language Theory http://link.springer.de/link/service/series/0558/bibs/2710/27100134.htm db/conf/dlt/dlt2003.html#BonizzoniFMZ03