@book { VertragswettbewerbinderambulantenGesundheitsversorgung,
    title = "Vertragswettbewerb in der ambulanten Gesundheitsversorgung",
    author = "Rainer {Pitschas}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00174-7",
    url = "https://www.peterlang.com/document/1044515"
}