Kristjánsdóttir H. Sustainable Energy Resources and Economics in Iceland and Greenland / H. Kristjánsdóttir, 2015 r=on-line. - Текст : электронный.
Kristjánsdóttir H. Economics and Power-intensive Industries / H. Kristjánsdóttir, 2014 r=on-line. - Текст : электронный.