see g. a. zubarev , `` vzaimodeystviye voysk v boyu '' -lsb- interworking of troops in battle -rsb- , moscow , voyenizdat , 1965 , p 9 ; d. a. ivanov , v. p. savelyev and p. v. shemanskiy , `` osnovy upravleniya voyskami v boyu '' -lsb- fundamentals of command and control in battle -rsb- , moscow , voyenizdat , 1977 , p 294 .