Nakou, Aikaterini
Sauter, Udo Hans
Kohnle, Ulrich
Article History
Received: 15 January 2015
Accepted: 3 November 2015
First Online: 20 November 2015
Compliance with ethical standards
:
: The study was funded by the Federal Ministry for Agriculture, Food and Consumer Protection in Baden-Württemberg.
Free to read: This content has been made available to all.