@book { ArithmeticintheThoughtofGerbertofAurillac,
    title = "Arithmetic in the Thought of Gerbert of Aurillac",
    author = "Marek {Otisk}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19269",
    url = "https://www.peterlang.com/document/1168919"
}