@article{NUMA_1982__40_132819,
     author = {K. Sikorski},
     title = {Bisection is {Optimal}},
     journal = {Numerische Mathematik},
     pages = {111--118},
     year = {1982},
     volume = {40},
     zbl = {0492.65027},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1982__40_132819/}
}