@article{Kramer2015,
author = {Kramer, Sarah C. and Drewes, Jochen and Kruspe, Martin and Marcus, Ulrich},
year = {2015},
language = {eng},
copyright = {http://creativecommons.org/licenses/by/4.0/},
title = {Factors associated with sexual risk behaviors with non-steady partners and
lack of recent HIV testing among German men who have sex with men in steady
relationships},
url = "http://dx.doi.org/10.17169/refubium-18735",
}