@book { ErfolgreicheHandelsstrategien,
    title = "Erfolgreiche Handelsstrategien",
    author = "Joachim {Zentes} and Stefan {Kolb} and Sebastian {Rittinger}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1136409"
}