TY  - GEN
A1  - Strassner, C
T1  - Is there any certification of public organic procurement in iPOPY countries? Veranstaltung: 16th IFOAM Organic World Congress der International Federation of Organic Agriculture Movements (IFOAM), Modena, Italien, 19.06.2008
Y1  - 2008
UR  - https://www.hb.fh-muenster.de/opus4/frontdoor/index/index/docId/4263
ER  -