"문화재청고시제2011-87호 (국가지정문화재<천연기념물> 관리단체 변경)" [National Cultural Property Administration Notification No. 2011-87 (Change of management organization of national cultural property <Natural Monument>)]. Gazette No. 17498. 2011-04-29. p. 122. Retrieved 2016-10-14.[dead link]