@article{Bankole2007,
author = {Bankole, A. and Biddlecom, A. and Singh, S. and Guiella, G. and Zulu, E.},
title= {Sexual behavior, knowledge and information sources of very young adolescents in four sub-Saharan African countries},
year = {2007},
volume = {11},
number = {3},
pages = {28--43},
}