1. K.Kristensen and E.Norbygaard (editors), Safety and efficacy of radiopharmaceuticals,Martinus Nijhoff Publishers Boston (1984).
2. K.Kristensen and E.Norbygaard (editors), Safety and efficacy of radiopharmaceuticals 1987,Martinus Nijhoff Publishers Boston (1987).
3. Good Practice in the Manufacture of Radiopharmaceuticals. A proposal put forward by a group of Pharmacists from the Nordic countries. Arch Pharm Chem 78: 1002–1009 (1971).
4. Draft supplementary guidelines for the manufacture of radiopharmaceuticals April 1990 (EEC 111/3937/89-EN).
5. EFTA,Basic Standards of Good Manufacturing Practice for Pharmaceutical Products,Document PH 3/83(Revised version),EFTA Secretariat,Geneva (1983).