@techreport{Hansen2009,
author = {Hansen, M.L. and Stage, L. and Knudsen, L.B. and Keiding, N.},
title= {Induced abortions and first births among Danish women in the 1980s and 1990s},
year = {2009},
publisher = {Department of Biostatistics, University of Copenhagen},
address = {Copenhagen},
number = {Research Report 09/10},
}