@article{KestingRennhak2011, author = {Tobias Kesting and Carsten Rennhak}, title = {Market Segmentation in German Business Practice - Relevance, Procedures and Challenges}, journal = {World Review of Entrepreneurship, Management and Sustainable Development}, volume = {7}, number = {4}, pages = {S. 361 -- 379}, year = {2011}, }