Liu B, Dompreh I, and Hartman A.M. Small area estimation of smoke-free workplace polices and home rules in U.S. counties. Nicotine & Tobacco Research, 2021. ntab015, https://doi.org/10.1093/ntr/ntab015.
Liu B and Gilary A (2014). Small Area Estimation for the Tobacco-Use Supplement to the Current Population Survey. In JSM Proceedings, Survey Research Methods Section. Alexandria, VA: American Statistical Association. 2542-2552.