Shaojie Zhang Ilya Borovok Yair Aharonowitz Roded Sharan Vineet Bafna A sequence-based filtering method for ncRNA identification and its application to searching for riboswitch elements. 557-565 2006 conf/ismb/2006 ISMB (Supplement of Bioinformatics) http://dx.doi.org/10.1093/bioinformatics/btl232 db/conf/ismb/ismb2006.html#ZhangBASB06