"Croatian concentration camps" . . . "concentration camps." . "extermination location" . . "concentration camps" . "death camps" . . "concentration and extermination camps" . "Concentration camps in the Independent State of Croatia" . "executing people in concentration camps" . "NDH concentration camps" . . "Nazi extermination site" . "concentration camps in the Independent State of Croatia" . . . . "Concentration camps in the Independent State of Croatia" . "concentration camp" . . "concentration and death camps" . . "concentration camps in the NDH" . "Croatian concentration camp during World War II" . "several concentration camps" . "Usta\u0161e concentration camps" .