Shoff, C., V. Y.-J. Chen, and T.-C. Yang. “When Homogeneity Meets Heterogeneity: The Geographically Weighted Regression With Spatial Lag Approach to Prenatal Care Utilisation”. Geospatial Health, vol. 8, no. 2, May 2014, pp. 557-68, doi:10.4081/gh.2014.45.