@ARTICLE{
author={Rushton Philippe J,Bons Trudy Ann,Vernon PA,Cvorovic Jelena B},
year={2007},
title={Genetic and environmental contributions to population group differences on the Raven's Progressive Matrices estimated fromtwins reared together and apart},
journal={PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIE},
volume={274},
number={1619},
pages={1773-1777},
document_type={Article},
}