@book { DieBestimmungdes199Abs1Nr2BGB,
    title = "Die Bestimmung des § 199 Abs. 1 Nr. 2 BGB",
    author = "Mark-Oliver {Otto}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101365"
}