@book { BilanzierungvonAktienoptionennachIFRS2,
    title = "Bilanzierung von Aktienoptionen nach IFRS 2",
    author = "Lars {Schmidt}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100042"
}