@article{Burger2010,
author = {Burger, K.},
title= {How does early childhood care and education affect cognitive development? An international review of the effects of early interventions for children from different social backgrounds},
year = {2010},
doi = {10.1016/j.ecresq.2009.11.001},
volume = {25},
number = {2},
pages = {140--165},
}