Questione giuridica chiave
Whether the federal appeal could be entertained for all named persons despite missing powers of attorney.
Decisione estratta
The appeal was inadmissible for the persons for whom no valid power of attorney was filed; only the signatories and those covered by filed powers could proceed.
Motivazione estratta
A collective objection signed by some persons did not amount to authorization for later cantonal and federal proceedings. Without express authorization, representation could not be assumed.