@book { LeadershipinaTimeofCrisis,
    title = "Leadership in a Time of Crisis",
    subtitle = "Simple Explanations of Complex Topics",
    author = "Murat {Ülker} and Ali Atif {Bir}",
    year = "2023",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b21294",
    url = "https://www.peterlang.com/document/1392527"
}