Found in articles
– Sognekirken (i «Norsk kulturhistorie II»), 1939 Sigurd and his brave companions. A tale of medieval Norway , 1943 Tilbake til fremtiden (memoarer),
vê xebatê ew baş hatiye naskirin û kete "Koleja zanistiyê" (collège des sciences) de. Du sal şûnde ew "Traité de dynamique" (peymana dînamîkê) çap dike
Oscar Wergeland (en) Hevjîn Amalie Sofie Bekkevold (d) (dp. 1839) Zarok Olaf Knudsen (d) Endamê Royal Norwegian Society of Sciences and Letters (en)
Academy of Sciences (en) Fatherland League (en) Royal Norwegian Society of Sciences and Letters (en) Saint Petersburg Academy of Sciences (en) Norwegian Academy