@book { ElektronischeBusinesstoBusinessMarktpltze,
    title = "Elektronische Business-to-Business-Marktplätze",
    author = "Steffen {Weber}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832444181",
    url = "https://m.diplom.de/document/220025"
}