@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 = {--132}, publisher = {mathdoc}, volume = {10}, number = {2}, year = {1974}, mrnumber = {0359034}, zbl = {0281.60071}, language = {en}, url = {http://geodesic.mathdoc.fr/item/KYB_1974__10_2_a3/} }