@book{2023:grobshuser:einkommens, title = {Einkommensteuer}, year = {2023}, note = {}, edition = {15}, publisher = {Schäffer-Poeschel}, address = {Stuttgart}, series = {Finanz und Steuern}, volume = {}, author = {Grobshäuser, Uwe and Schlenk, Axel and Schmidt, Stephan and Schustek, Heribert} }