@article{Træen2002,
author = {Træen, B. and Stigum, H. and Eskild, A.},
title= {Contraception and STD protection among urban Norwegians},
year = {2002},
doi = {10.1080/136910502753389396},
journal = {Culture, Health & Sexuality},
volume = {4},
pages = {85--102},
}