@incollection{2020:barth:b_grundla,
title = {B. Grundlage: Werbung im Internet},
year = {2020},
note = {},
booktitle = {Der Kampf um die Werbung im Internet},
pages = {40--248},
edition = {1},
author = {Barth, Günter},
publisher = {Nomos},
address = {Baden-Baden},
series = {Recht der Informationsgesellschaft},
volume = {46}
}