Kernrechtsfrage
Whether the appeal had to be struck from the roll after the appellant's filing of 15 February 2010.
Extrahierter Entscheid
The filing was construed as a withdrawal of the appeal, so the proceedings were discontinued.
Extrahierte Begründung
Under Art. 71 BGG in conjunction with Art. 73(1) BZP, and by procedure under Art. 32(2) BGG, a withdrawn appeal is to be struck out.