Usefull links
Federal Office for Nature Protection (BfN): https://www.bfn.de/fileadmin/BfN/cites/Dokumente/Barrierefrei-holzliste-COP-18-Aug-20.pdf
CITES: https://www.cites.org/eng/disc/species.php
FSC-Certification: https://www.fsc-deutschland.de/de-de/zertifizierung
https://www.bureauveritas.de/unsere-services/fsc-zertifizierung
... ESPEN AG: https://info.fsc.org/details.php?id=a024000000Ew5SgAAJ&type=certificate
Determination of Wood Species: https://www.thuenen.de/de/infrastruktur/thuenen-kompetenzzentrum-holzherkuenfte/
Lesser Known Species: https://www.lesserknowntimberspecies.com/
Initiative for the Promotion of Tropical Hardwoods from sustainable Sources: http://www.europeansttc.com/