Minghui Jiang Pedro J. Tejada Ramoni O. Lasisi Shanhong Cheng D. Scott Fechser K-Partite RNA Secondary Structures. 157-168 2009 WABI http://dx.doi.org/10.1007/978-3-642-04241-6_14 conf/wabi/2009 db/conf/wabi/wabi2009.html#JiangTLCF09