@book { PsychologischeUntersuchungzurBewltigungvonAuswanderung,
    title = "Psychologische Untersuchung zur Bewältigung von Auswanderung",
    author = "Ruth {Marquardt-Harrison}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091471"
}