1. International Council of Nurses (ICN). The scope of practice, standards and competencies of the advanced practice nurse. Monograph, ICN regulation series. Geneva: Author; 2008.
2. International Council of Nurses (ICN). ICN framework of competencies for the nurse specialist. Geneva: International Council of Nurses; 2009. ISBN: 978-92-95065-55-0.
3. International Council of Nurses (ICN). Guidelines on advanced practice nursing. Geneva: International Council of Nurses; 2020. ISBN: 978-92-95099-71-5.
4. European Specialist Nurses Organizations (ESNO). Competences of the clinical nurse specialist (CNS): common plinth of competences for the common training framework of each specialty. Version 1, 17 Oct 2015.
5. Bjornsdottir K, Marga T. Clinical nurse specialists: definition, recognition and education. (Sérfræðingar í hjúkrun: skilgreining, viðurkenning og nám). Icelandic Nurs J. 2006;1(1):28–36.