Towards a Digital Sleep Diary Standard. - Lisa Schmitz; Bjarki Freyr Sveinbjarnarson; Guðni Nathan Gunnarsson; Ólafur Andri Davíðsson; Þór Breki Davíðsson; Erna Sif Arnardóttir; María Óskarsdóttir; Anna Sigríður Islind (AMCIS, 2022)