@article{KYB_1974_10_2_a3,
     author = {van Kieu, Pham},
     title = {A diffusion approximation in the ruin problem for a controlled {Markov} chain},
     journal = {Kybernetika},
     pages = {125--132},
     year = {1974},
     volume = {10},
     number = {2},
     mrnumber = {0359034},
     zbl = {0281.60071},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1974_10_2_a3/}
}