@article{DAN_1986_291_3_a2,
     author = {A. A. Belolipetskii and A. Yu. Ryabov},
     title = {Singularities of the {Bellman} function in a linear time-optimality problem},
     journal = {Doklady Akademii Nauk},
     pages = {528--530},
     publisher = {mathdoc},
     volume = {291},
     number = {3},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_291_3_a2/}
}