@article{Williams2008,
author = {Williams, T. and Connolly, J. and Cribbie, R.},
title= {Light and heavy heterosexual activities of young canadian adolescents: Normative patterns and differential predictors},
year = {2008},
doi = {10.1111/j.1532-7795.2008.00554.x},
volume = {18},
number = {1},
pages = {145--172},
}