@article{Felder+2002+498+500, url = {https://doi.org/10.3790/vjh.71.4.498}, title = {Wettbewerb sagen, aber Einheitskasse meinen}, title = {}, author = {Stefan Felder}, pages = {498--500}, volume = {71}, number = {4}, journal = {Vierteljahrshefte zur Wirtschaftsforschung}, doi = {doi:10.3790/vjh.71.4.498}, year = {2002}, lastchecked = {2002-10-01} }