Wærp, Henning Howlid. “Ingar Sletten Kolloens Hamsun: Svermeren (Gyldendal 2003): Et Konsolidert—og Ikke Nytt—Hamsunbilde”. Nordlit, no. 14, Aug. 2003, pp. 225–234, https://doi.org/10.7557/13.1932.