@book{
international1991iaea,
title={Emergency Power Systems at Nuclear Power Plants},
series={Safety Series},
number={50-SG-D7 (REV. 1)},
year={1991},
isbn={92-0-123291-8},
url={http://www.dgdingfa.net/publications/3741/emergency-power-systems-at-nuclear-power-plants},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}