European Commission. Directorate-general for Employment, Industrial Relations and Social AffairsOffice for Official Publications of the European Communities ,19971997
edited by O. Stølen...[et al.] ; for the Management Committee of the COST 814 projectOffice for Official Publications of the European Communities, 19971997
European Commission. Directorate-general for Employment, Industrial Relations and Socical AffairsOffice for Official Publications of the European Communities ,19971997