Moreover, we confirm that this Power of Attorney encompasses all neccessary powers to defend the interests of A. [in Kurzform] in court. Furthermore, we confirm that also after 6 March 2017, we, on behalf of A. [in Kurzform], authorized and empowered O. [Anwaltskanzlei AG] in particular to file the challenge / nullity claim of 4 May 2017 and all other submissions in these proceedings HOR.2017.38.