Michael R. Fellows Frances A. Rosamond Fedor V. Fomin Daniel Lokshtanov Saket Saurabh Yngve Villanger Local Search: Is Brute-Force Avoidable? 486-491 2009 IJCAI http://ijcai.org/papers09/Papers/IJCAI09-088.pdf conf/ijcai/2009 db/conf/ijcai/ijcai2009.html#FellowsRFLSV09