Gonzalo Navarro Ricardo A. Baeza-Yates Eduardo F. Barbosa Nivio Ziviani Walter Cunto Binary Searching with Nonuniform Costs and Its Application to Text Retrieval. 145-169 2000 27 Algorithmica 2 http://link.springer.de/link/service/journals/00453/bibs/0027002/00270145.html db/journals/algorithmica/algorithmica27.html#NavarroBBZC00