1. 1 M. Ehnfors, A. Ehrenberg, and I. Thorell-Ekstrand (1998 )VIPS boken. Om en forskningsbaserad modell for dokumentation av omvardnad i patientjournalen (The VIPS Book. A Research-Based Model for Nursing Documentation in the Patient Record).Vardforbundet forskning og utveckling, Stockholm.
2. Nursing documentation in patient records: experience of the use of the VIPS model
3. 3 M. Gordon (1998 ) Nursing Nomenclature and Classification System Development .Online Journal of Issues in Nursing, 30 September. URL: http://www.nursingworld.org/ojin/tpc7/tpc7_1.htm.
4. 4 T. Hamran (1992 )Pleiekulturen - en utfordring til den teknologiske tenkematen (The Nursing Culture - a Challenge to Technological Thinking). Gyldendal Norsk Forlag, Oslo.
5. Modeling Nursing Terminology Using the GRAIL Representation Language