TY  - BOOK
A1  - Mikkelsen, C.
A2  - Strassner, C
T1  - Certifying Out of Home Operators in Europe. European Forum for Certification. Proceedings zu: certification session held at the BioFach Congress 2010, Nuremberg
Y1  - 2010
UR  - https://www.hb.fh-muenster.de/opus4/frontdoor/index/index/docId/3586
ER  -