@article{Hyde1990,
author = {Hyde, J.S. and Fennema, E. and Lamon, S.J.},
title= {Gender differences in mathematics performance: A meta-analysis},
year = {1990},
doi = {10.1037/0033-2909.107.2.139},
journal = {Psychological Bulletin},
volume = {107},
number = {2},
}