@book { Telecollaboration20,
    title = "Telecollaboration 2.0",
    author = "Sarah {Guth} and Francesca {Helm}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0013-6",
    url = "https://www.peterlang.com/document/1052189"
}