@book { PovertyReliefinaMixedEconomy,
    title = "Poverty Relief in a Mixed Economy",
    author = "Karin {Heitzmann}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01448-8",
    url = "https://www.peterlang.com/document/1053628"
}