@article{West2013,
author = {West, B.T. },
title= {An examination of the quality and utility of interviewer observations in the National Survey of Family Growth},
year = {2013},
doi = {10.1111/j.1467-985X.2012.01038.x},
journal = {Journal of the Royal Statistical Society: Series A },
volume = {176},
number = {part 1},
pages = {211−225},
}