@book { EssentialFacilitiesalsordnungspolitischesProblem,
    title = "Essential Facilities als ordnungspolitisches Problem",
    author = "Silvia {Rottenbiller}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13695",
    url = "https://www.peterlang.com/document/1068274"
}