@book { Provocations,
    title = "Provocations",
    subtitle = "Sylvia Ashton-Warner and Excitability in Education",
    author = "Judith P. {Robertson} and Cathryn {McConaghy}",
    year = "2006",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1102084"
}