Luca Bortolussi Francesco Fabris Alberto Policriti BuST-Bundled Suffix Trees. 91-102 2006 IFIP TCS http://dx.doi.org/10.1007/978-0-387-34735-6_11 conf/ifipTCS/2006 db/conf/ifipTCS/ifipTCS2006.html#BortolussiFP06