TY JOUR TI METHOD AND MATHEMATICAL MODELS OF ASSESSMENT OF AVAILABILITY OF THE MARINE RADIO AIDS KW marine radio aids KW methodology KW mathematical models of availability assessment KW availability KW indicators KW dynamics of the operation KW application mode and conditions JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Aderikhin, I.. AU Vorotyntseva, M.. AU Tsvetkova, L.. PY 2015 IS 2015 PB Astrakhan State Technical University