@book { NationaleInnovationssysteme,
    title = "Nationale Innovationssysteme",
    subtitle = "Eine komparative Analyse am Beispiel Irlands und Finnlands",
    author = "Heike {Martinen}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103647"
}