1. Biological monitoring and Biological Limit Values (BLV): The strategy of the European Union
2. 3 SCOEL. Occupational Exposure Limits-Recommendations of the Scientific Committee for Occupational Exposure Limits to Chemical Agents 1994-97. European Commission Directorate-General for Employment, Industrial Relations and Social Affairs Unit V/F.5. Luxemburg: Office for Official Publications of the European Communities, ISBN 92-828-4270-3; 1998.
3. 4 SCOEL (2008) European Commission, Employment, Social Affairs & Equal Opportunities, Health and Safety at Work. SCOEL Recommendations http://ec.europa.eu/employment_social/health_safety/recommendations_en.htm
4. Procedures for Health Risk Assessment in Europe