@book { TheLongSeventhCentury, title = "The Long Seventh Century", author = "Alessandro {Gnasso} and Emanuele E. {Intagliata} and Thomas J. {MacMaster}", year = "2015", publisher = "Peter Lang Verlag", address = "Oxford, United Kingdom", doi = "10.3726/978-3-0353-0686-6", url = "https://www.peterlang.com/document/1053358" }