TY JOUR TI APPLICATION OF THE RISK THEORY AT DESIGNING OF ICEBREAKING VESSELS KW risk theory KW design KW icebreaker KW hovercraft JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Tyukova, A.. AU Gasanov, K.. AU Pichugin, D.. PY 2013 IS 2013 PB Astrakhan State Technical University