@article{Kulik2019,
author = {Kulik, N. and Skopek, J. and Triventi, M. and Blossfeld, H.P.},
title= {Social background and children’s cognitive skills: The role of early childhood education and care in a cross-national perspective},
year = {2019},
doi = {10.1146/annurev-soc-073018-022401},
volume = {45},
pages = {557--579},
}