TY  - JOUR
A1  - Lukas, M
A1  - Strassner, C
A1  - Løes, A-K
T1  - A need for harmonization across Europe? Certification of organic catering.
JF  - Ecology & Farming
Y1  - 2011
IS  - Nr. 5
SP  - 29
EP  - 31
ER  -