1. Almy, R. (2013). A Global Compendium and Meta-Analysis of Property Tax Systems. Lincoln Institute of Land Policy Working Paper.
https://www.lincolninst.edu/sites/default/files/pubfiles/almy_wp14ra1-v2.pdf
2. Does the Henry George Theorem Provide a Practical Guide to Optimal City Size?
3. Bunn, D. (2022a). International Tax Competiveness Index 2022. Tax Foundation.
https://files.taxfoundation.org/20221013150933/International-Tax-Competitiveness-Index-2022.pdf?_gl=1*11oes42*_ga*Mjk4OTMyOTQyLjE2NzU1MjcwNTk.*_ga_FP7KWDV08V*MTY3NjQ1ODE2Ny4yLjAuMTY3NjQ1ODE2OC41OS4wLjA
4. Bunn, D. (2022b). Sources of U.S. Tax Revenue by Tax Type. Tax Foundation.
https://taxfoundation.org/us-tax-revenue-by-tax-type-2022/
5. BVerfG (Federal Constitutional Court) (2018). Decision of 10.4.2018 (1 BvL 11/14, 1 BvR 889/12, 1 BvR 639/11, 1 BvL 1/15, 1 BvL 12/14).
https://www.bundesverfassungsgericht.de/SharedDocs/Entscheidungen/DE/2018/04/ls20180410_1bvl001114.html