Question juridique clé
Whether the children's Swiss settlement permits had expired after a long stay abroad.
Solution extraite
The permits had lapsed because the children's center of life had shifted to Macedonia and temporary visits to Switzerland did not interrupt the statutory absence period.
Motifs extraits
Under Art. 61(2) AuG, a settlement permit expires after six months abroad unless maintained. The long schooling and residence abroad showed no remaining center of life in Switzerland; later reintegration could not revive an already lapsed permit.