Háttalykill enn forni - Rǫgnvaldr Kali Kolsson Earl of Orkney, Heiliger 1103-1158 (Munksgaard, 1941)
Poem attributed to Rögnvaldr kali and Hallr þórarinsson. - Includes facsimiles and transcription of "Fragmenta Af Hatta lijkle", Cod. Isl. Papp. 8:o N:o 25, leaves 33-44 in the Royal library in Stockholm