• A proposal for a simple average-based progressive taxation systemFischer, Dirk-Hinnerk; Ferraro, SimonaPublic sector economics2019 / p. 141 - 165 https://doi.org/10.3326/pse.43.2.2 https://www.scopus.com/sourceid/21100854766 https://www.scopus.com/record/display.uri?eid=2-s2.0-85067028079&origin=inward&txGid=9244cc80824cf3c9d93bf6ddb257d4b8