@techreport{Speringer2015,
author = {Speringer, M. and Goujon, A. and Eder, J. and KC, S. and Bauer, R. and Potančoková, M.},
title= {Validation of the Wittgenstein Centre back-projections for populations by age, sex, and level of education from 1970 to 2010},
year = {2015},
publisher = {nternational Institute for Applied Systems Analysis},
address = {Laxenburg, Austria},
}