Question juridique clé
Whether the appeal could challenge the cantonal court's application of Liechtenstein law on piercing the corporate veil and foundation law.
Solution extraite
The appeal failed on that point: attacks directed at the substantive application of Liechtenstein law were inadmissible under federal appeal review.
Motifs extraits
The federal appeal can examine whether Swiss law was wrongly applied instead of foreign law, but it does not review the cantonal court's substantive application of the foreign law itself.