@article{KalkaZiehe1999, author = {Kalka, Regine and Ziehe, Nikola}, title = {Dem Preisdruck des Handels proaktiv begegnen}, series = {Lebensmittel-Zeitung}, volume = {51}, journal = {Lebensmittel-Zeitung}, number = {15}, pages = {70 -- 72}, year = {1999}, language = {de} }