@techreport{Rotkirch2015,
author = {Rotkirch, A. and Szalma, I. and Donno, A. and Tanturri, M.L.},
title= {Increasing childlessness in Europe: Time trends and country differences},
year = {2015},
publisher = {Stockholm University},
address = {Stockholm},
number = {FamiliesAndSocieties project, working paper series 33},
}