@article{RM_1987_42_5_a21, author = {N. N. Kozik and N. K. Smolentsev and V. A. Shalaumov}, title = {All-Union {School} {``Optimal} {Control.} {Geometry} and {Analysis''}}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, publisher = {mathdoc}, volume = {42}, number = {5}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/RM_1987_42_5_a21/} }