@techreport{Pyrozhkov2011,
author = {Pyrozhkov, S. and Foygt, N. and Jdanov, D. },
title= {About mortality data for Ukraine. The Human Mortality Database. Background and documentation},
year = {2011},
URL = {http://www.mortality.org/hmd/UKR/InputDB/UKRcom.pdf},
}