@book { MissioncologieAuftragkologie,
    title = "Mission écologie/Auftrag Ökologie",
    author = "Olivier {Hanse} and Annette {Lensing} and Birgit {Metzger}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    doi = "10.3726/b13261",
    url = "https://www.peterlang.com/document/1113420"
}