@book { PsychosozialeInterventioneninambulantenHerzgruppen,
    title = "Psychosoziale Interventionen in ambulanten Herzgruppen",
    author = "",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640727223",
    url = "https://www.hausarbeiten.de/document/159909"
}