Source Information
Ancestry.com. Abel, den store mathematikers slegt [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2005.Original data: Finne-Gr²nn, Stian Herlofsen,. Abel, den store mathematikers slegt. Christiania: Akties, Thronsen & Co. Bogtrykkeri, 1899.
