@book { EducationalManagementTurnedonItsHead,
    title = "Educational Management Turned on Its Head",
    author = "William C. {Frick}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1109372"
}