@book { TeachBoldly,
    title = "Teach Boldly!",
    subtitle = "Letters to Teachers about Contemporary Issues in Education",
    author = "Mary Cain {Fehr} and Dennis Earl {Fehr}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1106189"
}