. . . "The earthwork castles of medieval Leinster"@en . . . . . . . . . . . . . "uk.bl.ethos.243930" . "The earthwork castles of medieval Leinster"@en . . . . . . . . . . . . "doctoral thesis by Kieran O'Conor"@en . . . "1993-01-01T00:00:00Z"^^ . . "The earthwork castles of medieval Leinster"@en . . . . "The earthwork castles of medieval Leinster"@en .