﻿PT Unknown AU Bottomley, D Stuckert, J Hofmann, P Tocheny, L Hugon, M Khabensky, VB Bechta, SV Veshchunov, MS Palagin, AV Kiselev, AE Nalivaev, VI Goryachev, AV Zhdanov, V Baklanov, V TI Severe accident research as an example of effective international collaboration under the ISTC program managed by the CEG-SAM PY 2011 LA english ER