Key legal question
Whether the appeal in international tax assistance was admissible under Art. 84a BGG as involving a fundamental legal question or especially important case.
Extracted holding
The appellant did not sufficiently show any fundamental legal question or especially important case; the appeal was therefore inadmissible.
Extracted reasoning
Merely listing questions without explaining why they meet Art. 84a BGG does not satisfy the substantiation requirement of Art. 42(2) BGG.