@article{VUU_2010_3_a8,
     author = {V. I. Sumin},
     title = {On singular controls in the sense of the pointwise maximum principle in distributed optimization problems},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {70--80},
     publisher = {mathdoc},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2010_3_a8/}
}