@article{Van Heerden2010,
author = {Van Heerden, A.C. and Norris, S.A. and Richter, L.M.},
title= {Using mobile phones for adolescent research in low and middle income countries: Preliminary findings from the birth to twenty cohort, South Africa},
year = {2010},
doi = {10.1016/j.jadohealth.2009.09.008},
volume = {46},
number = {3},
pages = {302--304},
}