Maybe 100, 000 still do, about half of them north of the Ibar river, which cuts through the northern town of Mitrovica.

ECONOMIST: The delicate Balkan balance | The

North of the Ibar, between Mitrovica and Serbia proper, they hold sway.

ECONOMIST: The delicate Balkan balance | The

Three Albanian boys then drowned in the River Ibar, which divides the northern town of Mitrovica into an Albanian south and a Serbian north.

ECONOMIST: Tensions boil over again in the troubled Serbian province

The one place, apart from Pristina, where Serbs have remained in significant numbers is the mining town of Mitrovica, part of the French sector in the north, where the Ibar river has become the dividing line in an ugly stand-off.

ECONOMIST: Who controls Kosovo?