@article{KYB_1981_17_6_a2,
     author = {Sladk\'y, Karel},
     title = {On the existence of stationary optimal policies in discrete dynamic programming},
     journal = {Kybernetika},
     pages = {489--513},
     year = {1981},
     volume = {17},
     number = {6},
     mrnumber = {674064},
     zbl = {0473.90086},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1981_17_6_a2/}
}