Symmetries and conservation laws in optimal control systems / Almaskhan Gugushvili [et al.] ; transl. by Tamar Stazhadze. - [Tbilisi] : Georg. Nat. Acad. of Sciences, [2011]. - VIII, 161 p. : fig. ; 29 cm.см.. - Bibliogr.: pp. 155-161. - ISBN 978-9941-0-1271-6[MFN: 196549]