@book{
international1976iaea,
title={Stairs User's Manual (by V. Gadjokov, V. Dragulev, N. Gove, H. Schmid)},
series={TECDOC Series},
number={191},
year={1976},
url={http://www.dgdingfa.net/publications/440/stairs-users-manual-by-v-gadjokov-v-dragulev-n-gove-h-schmid},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}