@book{Burger+2019, url = {https://doi.org/10.3790/9783428472468}, title = {Der Einkommensbegriff im öffentlichen Schuldrecht}, title = {}, author = {Walter Burger}, publisher = {Duncker & Humblot}, address = {}, doi = {doi:10.3790/9783428472468}, isbn = {9783428472468}, year = {1991}, lastchecked = {2019} }