@book { KontaktproblemebeiflexiblenMehrkrpersystemeninDeskriptorform,
    title = "Kontaktprobleme bei flexiblen Mehrkörpersystemen in Deskriptorform",
    author = "Alexander {Kallischko}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832483838",
    url = "https://m.diplom.de/document/223573"
}