EXPERIMENTAL: Notation with blanks and leading zeros for sortability.
NotationLong
Methoden (z.B. Interviews), Techniken und Modelle der Marktforschung, betriebliche und Institutsmarktforschung
Methods, techniques and models of market research, operational and institutional market research
Market research and methods of increasing sales, general
Marktforschung und Absatzsteigerungsmethoden, Allgemein