Martin Stig Stissing Christian N. S. Pedersen Thomas Mailund Gerth Stølting Brodal Rolf Fagerberg Computing the Quartet Distance Between Evolutionary Trees of Bounded Degree. 101-110 2007 conf/apbc/2007 APBC http://www.comp.nus.edu.sg/~wongls/psZ/apbc2007/apbc146a.pdf db/conf/apbc/apbc2007.html#StissingPMBF07