@book { DasEigenkapitalersatzrechtderGmbH,
    title = "Das Eigenkapitalersatzrecht der GmbH",
    author = "Doris {Gröneweg}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832416911",
    url = "https://m.diplom.de/document/217565"
}