@article{Hopper2008,
author = {Hopper, K. and Shinn, M. and Laska, E. and Meisner, M. and Wanderling, J.},
title= {Estimating numbers of unsheltered homeless people through plant-capture and postcount survey methods},
year = {2008},
doi = {10.2105/AJPH.2005.083600},
volume = {98},
number = {8},
pages = {1438--1442},
}