@article{MZM_2013_93_4_a9,
     author = {S. Ya. Serovaǐskiǐ},
     title = {Optimal {Control} of {Nonlinear} {Evolution} {Systems} in the {Case} where the {Solution} is not {Differentiable} with {Respect} to the {Control}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {586--603},
     publisher = {mathdoc},
     volume = {93},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_93_4_a9/}
}