1. Aaronson N, Ahmedzai S, Bullinger M, Crabeels D, Estapè J, Filiberti A, Flechtner H, Frick U, Hürny C, Kaasa S, Klee M, Mastilicia M, Osoba D, Pfausler B, Razavi D, Rofe P, Schraub S, Sullivan M, Thkeda F (1991) The EORTC Core quality of life questionnaire: interim results of an international field study. In: Osoba D (ed) Effect of cancer on quality of life. CRC Press, Vancouver, pp 136–154
2. Aaronson, N, Acquadro C, Alonso J, Apolone G, Bucquet D, Bullinger M, Bungay K, Fukuhara S, Gandek B, Keller S, Razavi D, Sanson-Fisher R, Sullivan M, Wood-Dauphinee S, Wagner A, Ware J (1992) International quality of life assessment (IQOLA) project. Quality Life Res 1: 349–351
3. Bullinger M (1991) Quality of life-definition, conceptualization and implications – a methodologist’s view. Theoretical Surg 6: 143–148
4. Bullinger M (1994) German translation and psychometric testing of the SF-36 – preliminary results from the IQOLA Project. Social Sci Med, in press
5. Bullinger M, Hasford J (1991) Evaluating quality of life measures. German clinical trials. Controlled Clin lfials 12: 915–1055