@book { DiewettbewerbsbezogeneAbgrenzungdesrelevantenMarktes,
    title = "Die wettbewerbsbezogene Abgrenzung des relevanten Marktes",
    author = "Michael {Schwalba}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090068"
}