Claudio Gutierrez Flavio Gutierrez Maria-Cecilia Rivara Complexity of the bisection method. 131-138 2007 382 Theor. Comput. Sci. 2 http://dx.doi.org/10.1016/j.tcs.2007.03.004 db/journals/tcs/tcs382.html#GutierrezGR07