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ØrnulvØ.ØdegårdØrnulvØ., The Incidence of Mental Diseases in Norway During World War Ii, „Acta Psychiatrica Scandinavica”, 29 (4), 1954, s. 333–353, DOI: 10.1111/j.1600-0447.1954.tb05692.x, ISSN1600-0447(ang.).