//-->
Servqual: a multiple-item scale for measuring customer perceptions of service quality
Parasuraman, A., (1986)
Jenseits der balanced scorecard: strategische Wettbewerbsvorteile messen
Rughase, Olaf G., (1999)
The development of a scale for measuring relationship marketing orientation
Yau, Oliver H. M., (1999)
Computer aided marketing and selling : information asset management
Shaw, Robert, (1991)
Return on ideas
Shaw, Robert, (2010)