@incollection{2020:barth:e_konterr, title = {E. Konterreaktion: Maßnahmen zur Umgehung der Verhinderung}, year = {2020}, note = {}, booktitle = {Der Kampf um die Werbung im Internet}, pages = {531--548}, edition = {1}, author = {Barth, Günter}, publisher = {Nomos}, address = {Baden-Baden}, series = {Recht der Informationsgesellschaft}, volume = {46} }