Weijia Xu Stuart Ozer Robin Ray Gutell Covariant Evolutionary Event Analysis for Base Interaction Prediction Using a Relational Database Management System for RNA. 200-216 2009 SSDBM http://dx.doi.org/10.1007/978-3-642-02279-1_15 conf/ssdbm/2009 db/conf/ssdbm/ssdbm2009.html#XuOG09