1. EuroQol©: health-related quality of life measurement. Results of the Swedish questionnaire exercise
2. EuroQol - a new facility for the measurement of health-related quality of life
3. and Estimating a parametric relation between health description and health valuation using the EuroQol instrument. In: Björk S. (ed.) EuroQol conference proceedings. IHE Working paper, 1992, p. 2.
4. and Statistical methodology for the analysis of EuroQol valuation data. In: Sintonen, H. (ed.) EuroQol conference proceedings. Discussion Paper No 2, Kuopio University Publications E. Social Sciences, vol. 8, 1993.
5. and Modelling the EuroQol data: some preliminary results. In: Busschbach, J.J.V. Bonsel, G.J. and de Charro, F.Th. EuroQol Discussion Papers. Erasmus University, Rotterdam, 1993.