Hansmann, Matthias
Kohler, Michael
Walk, Harro
Article History
Received: 14 February 2018
Revised: 21 May 2018
First Online: 30 June 2018
Change Date: 29 August 2018
Change Type: Correction
Change Details: There is a gap at the end of the proof of Theorem 1, since there the application of the conditional McDiarmid inequality yields.