- Noardeast-Fryslân 53°20′N 6°00′E / 53.333°N 6.000°E / 53.333; 6.000 (
Aalzum)
Abbega Súdwest-Fryslân 53°01′N 5°34′E / 53.017°N 5.567°E / 53.017; 5...
- n. 60, 1881, pp. 225–235; R. MUNRO,
Notes of a
visit to a terp
mound at
Aalzum, in
North Friesland, Holland. “Proceedings of the
Society of Antiquaries...