(1) The parties shall be represented before the appellate court by a lawyer admitted to practise before a German court who acts as their authorised representative. Legal persons under public law may be represented by civil servants or by employees qualified to serve as a judge.
(2) Sections 65, 69 to 72 with the exception of the reference to Section 227(3) of the German Code of Civil Procedure [Zivilprozessordnung], Sections 75(1) to (3) 76(1) and (6), Sections 165 and 167(2) sentence 1 shall apply mutatis mutandis.