@article {carrillo2011pseudo,
	title = {A pseudo-GEE approach to analyzing longitudinal surveys under imputation for missing responses},
	journal = {Journal of Official Statistics},
	volume = {27},
	number = {2},
	year = {2011},
	pages = {255},
	author = {Carrillo, Iv{\'a}n A and Chen, Jiahua and Wu, Changbao}
}
