@book { PsychologicalContracting,
    title = "Psychological Contracting",
    subtitle = "Rationalisierung des Entstehungsprozesses psychologischer Arbeitsverträge – eine darwiportunistische Analyse",
    author = "Janina {Volmer}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02217-9",
    url = "https://www.peterlang.com/document/1047421"
}