@article{10_14736_kyb_2016_1_0066,
     author = {Ortega-Guti\'errez, R. Israel and Montes-de-Oca, Ra\'ul and Lemus-Rodr{\'\i}guez, Enrique},
     title = {Uniqueness of optimal policies as a generic property of discounted {Markov} decision processes: {Ekeland's} variational principle approach},
     journal = {Kybernetika},
     pages = {66--75},
     publisher = {mathdoc},
     volume = {52},
     number = {1},
     year = {2016},
     doi = {10.14736/kyb-2016-1-0066},
     mrnumber = {3482611},
     zbl = {1374.90407},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14736/kyb-2016-1-0066/}
}