"Hekla." . . . . . . "Hekla, a notorious volcano" . . . . . . . . "Hekla: a notorious volcano"@en . . . "Hekla : a notorious volcano"@en . "Hekla : a notorious volcano" . "Hekla : A notorious volcano" . . . . . . . . . . "Iceland" . . "Hekla (Iceland)" . . . . "Hekla (Islande, volcan)" . . "Hekla (Islande ; volcan)" .