TY  - GEN
A1  - Strassner, C
A1  - Roehl, R.
T1  - Organic Certification of Hotels, Restaurants and Catering in Germany. Veranstaltung: 1st Nordic Organic Conference, Göteborg, Schweden, 18.-20.05.2009
Y1  - 2009
ER  - 
TY  - GEN
A1  - Strassner, C
A1  - Roehl, R.
T1  - Organic certification in the iPOPY countries and Germany. Current status and future challenges Veranstaltung: iPOPY Open Seminar Providing organic school food for youths in Europe - Policy strategies, certification and supply chain management in Denmark, Finland, Italy and Norway im Rahmen des Kongressprogramms der Fachmesse BioFach, Nürnberg, 20.02.2009
Y1  - 2009
ER  -