@book { TransformationalOutsourcing,
    title = "Transformational Outsourcing",
    author = "Kai Jens {Ströder}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03979-5",
    url = "https://www.peterlang.com/document/1048325"
}