Press law on the internet and "electronic press" (together with Prof. Dr. Roger Mann) and commentary on § 54 RStV (Telemedien) and § 58 RStV (Werbung, Sponsoring, Gewinnspiele), in: Spindler/Schuster, Recht der elektronischen Medien, Beck Verlag, Munich, 3rd ed. 2015

VDZ White Paper "Rechtliche Rahmenbedingungen im Abo-Vertrieb" together with Dr Roger Mann, 2nd edition, Berlin 2012 "http://www.vdz.de/digital-publikationen-white-paper/".

Press law on the internet and "electronic press" (together with Prof. Dr. Roger Mann) and commentary on § 54 RStV (telemedia) and § 58 RStV (advertising, sponsoring, competitions), in: Spindler/Schuster, Recht der elektronischen Medien, Beck Verlag, Munich, 2nd edition 2011.

For risks and side effects, please read the conditions of participation. At the same time commentary on BGH "FIFA-WM Gewinnspiel" Urt. v. 9 July 2009 - I ZR 64/07 - (Kommunikation & Recht 2010, p. 107), in: Kommunikation & Recht (K&R) 2010, p. 145

Mann/Smid, Press Distribution Law Publishing House, Dr. Otto Schmidt Cologne, 2008

K&R commentary on the judgement of the Frankenthal Regional Court of 16 May 2006 on the liability of the database operator (K&R 2006, 355), in: Kommunikation & Recht (K&R) 2006, p. 358

Country of origin principle - not for press sites? in: Archiv für Presserecht (AfP) 2006, p. 224

Magazine Subscriptions as Fruit of the Forbidden Tree? - Prohibition of the delivery of anti-competitively advertised magazine subscriptions in: Mann/Smid (eds.), Festschrift für Renate Damm zum 70. Geburtstag, Nomos Verlagsgesellschaft, Baden-Baden 2005, p. 297.

Book review: Dauner-Lieb/Heidel/Lepa/Ring (eds.), AnwaltKommentar Schuldrecht, in: AnwaltsGebühren spezial 2002, p. 167

The journalist as an insider on the basis of publicly available information in: Archive for Press Law (AfP) 2002, p.13

The copied coursebook (database work/database producer) in: Wandtke/Bullinger, Fallsammlung zum Urheberrecht, 1999.

Price Undercutting of Press Products in: Wettbewerb in Recht und Praxis (WRP) 1997, 139 (together with Prof. Dr. Roger Mann).

On seamlessness as an antitrust effectiveness requirement for selective distribution tie systems; comment on the judgement of the ECJ in case C-376/92, Metro SB-Großmärkte GmbH & Co. ./. Cartier S.A., in: Recht der Internationalen Wirtschaft (RIW) 1995, p. 191

Comment on BGH WM 1990, 1429 in: WuB IV A. § 273 BGB 2.90 (together with Prof. Dr. Harald Herrmann)

Comment on BGH WM 1989, 1850 in: WuB II J. § 705 BGB 1.90 (together with Prof. Dr. Harald Herrmann)