@article {chen2000efficient,
	title = {Efficient random imputation for missing data in complex surveys},
	journal = {Statistica Sinica},
	volume = {10},
	number = {4},
	year = {2000},
	pages = {1153{\textendash}1170},
	publisher = {C/O DR HC HO, INST STATISTICAL SCIENCE, ACADEMIA SINICA, TAIPEI 115, TAIWAN},
	author = {Chen, J and Rao, JNK and Sitter, RR}
}
