Columbia subject headings:
Harvard subject headings:
Gunnlaugr Illugason Ormstunga, approximately 983-1008.
Hrafn Ömundarson Skáld-Hrafn, -1008?
Princeton subject headings:
Gunnlaugr Illugason Ormstunga, approximately 983-1008.
Hrafn Ömundarson Skáld-Hrafn, d. 1008?