@book { DerInformationsgehaltderBerichterstattungindercurrencymarketsKolumnedesWallStreetJournals,
    title = "Der Informationsgehalt der Berichterstattung in der «currency markets» Kolumne des «Wall Street Journals»",
    author = "Joachim {Keller}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095676"
}