@article{Durrant2009,
author = {Durrant, G.B. and Steele, F.},
title= {Multilevel modelling of refusal and non-contact in household surveys: Evidence from six UK government surveys},
year = {2009},
doi = {10.1111/j.1467-985X.2008.00565.x},
journal = {Journal of the Royal Statistical Society: Series A (Statistics in Society)},
volume = {172},
number = {2},
pages = {361--381},
}