TY JOUR TI SUBOPTIMAL CONTROL OVER LINEAR NON-STATIONARY PLANT WITH DELAY KW robust control KW suboptimal control KW external disturbance KW unspecified non-stationary linear plant KW integrated criterion of quality KW observer KW Lyapunov function JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Galiauv, E.. AU Frangulova, E.. PY 2019 IS PB Astrakhan State Technical University