. . . "\u041A\u043Elubara" . . . . . . . . "battle of Kolubara" . "Kolubra" . . . . . . . . "450,000" . . . . . . . . . . . . . . . . . "Battle of Kolubara" . "400,000" . . . "Austria" . . "Battle of Kolubara" . . "19,000 missing or captured" . "Kolubara" . . . "Decisive Serbian victory" . . . . . "at Kolubara" . . "22,000 killed" . "91,000 wounded" . "1914-12-15" . . .