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Norsk biografisk leksikon (in Norwegian).
Retrieved 3
November 2012.
Norseng, Per G. "Olav 2
Haraldsson Den ****ige".
Store norske leksikon (in Norwegian)...
- 2016. "Hvitsärk".
Nordisk familjebok.
Retrieved March 25, 2016. Per G.
Norseng. "Gardarike".
Retrieved March 25, 2016. Войтович Л.В. Чи був Рагнар Лодброк...
- Per
Gudbrand Norseng (born 6
October 1951) is a
Norwegian historian. He was born in Oslo, and
received the cand.philol.
degree at the
University of Oslo...
- Sturluson,
contains background information. Per G.
Norseng Sigurd Magnusson.
Store norske leksikon. Per G.
Norseng Sigurd Magnusson.
Store norske leksikon. Sverresborg...
-
Archived from the
original on 29
March 2018.
Retrieved 20 May 2016. Per G.
Norseng Olav 3 (Haraldsson)
Kyrre (Store
norske leksikon) "Olav 3. Kyrre". Den...
- (in Norwegian). Oslo:
Norsk nettleksikon.
Retrieved 18
September 2012.
Norseng, Per G.; Opsahl, Erik. "Norge i høy- og
senmiddelalderen 1130-1537". In...
-
ligge i fred". NRK Trøndelag (in Norwegian).
Retrieved 20
September 2012.
Norseng, Per G. "Harald 3 Hardråde".
Store norske leksikon (in Norwegian). Retrieved...
- Britannica. Vol. 5 (11th ed.).
Cambridge University Press. pp. 222–223. Per G.
Norseng. "Knud 4 Valdemarssøn".
Store norske leksikon.
Retrieved 1
August 2018...
-
Machine forsvarsbygg.no Per G.
Norseng. "Håkon 4 Håkonsson".
Store norske leksikon.
Retrieved September 1, 2018. Per G.
Norseng. "Eirik Magnusson".
Store norske...
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Retrieved June 1, 2019. Per G.
Norseng. "birkebeiner".
Store norske leksikon.
Retrieved June 1, 2019. Per G.
Norseng. "baglere".
Store norske leksikon...
