@book { Formless,
    title = "Formless",
    subtitle = "Ways In and Out of Form",
    author = "Patrick {Crowley} and Paul {Hegarty}",
    year = "2005",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    url = "https://www.peterlang.com/document/1098746"
}