1. Faculty of Business Administration and Economics, Paderborn University, Padeborn, Germany
2. Industrial Engineering and Management, Lappeenranta-Lahti University of Technology LUT, Lahti, Finland
3. Tampere University of Applied Sciences, Tampere, Finland
4. School of Health, Care and Social Welfare, Mälardalen University, Eskilstuna, Sweden
5. Department of Nursing, Sophiahemmet University, Stockholm, Sweden