@article{Abraham2006,
author = {Abraham, Katharine G. and Maitland, Aaron and Bianchi, Suzanne M.},
title= {Nonresponse in the American time use survey: Who is missing from the data and how much does it matter?},
year = {2006},
doi = {10.1093/poq/nfl037},
journal = {The Public Opinion Quarterly},
volume = {70},
number = {5},
pages = {676--703},
}