@article{KYB_1971_7_6_a1,
     author = {Mandl, Petr},
     title = {The {Kiefer-Wolfowitz} approximation method in controlled {Markov} chains},
     journal = {Kybernetika},
     pages = {436--440},
     year = {1971},
     volume = {7},
     number = {6},
     mrnumber = {0317828},
     zbl = {0231.60052},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1971_7_6_a1/}
}