Questão jurídica principal
Whether the children's Swiss settlement permits had expired after a long stay abroad.
Decisão extraída
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.
Fundamentação extraída
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.