@book { EntwicklungeinesLeitfadenzurEntwicklungeinerSOA,
    title = "Entwicklung eines Leitfaden zur Entwicklung einer SOA",
    author = "Anna-Maria {Seyffert}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640257492",
    url = "https://www.hausarbeiten.de/document/118295"
}