Bjørnstjerne Bjørnson: <i>Sigurd Slembe</i>. København: Gyldendalske Boghandel, 1870.
<bdi><a href="https://en.wikipedia.org/wiki/en:Bj%C3%B8rnstjerne_Bj%C3%B8rnson" class="extiw" title="w:en:Bjørnstjerne Bjørnson"><span title="Norwegian writer (1832–1910)">Bjørnstjerne Bjørnson</span></a>
</bdi>
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