@book { MathematicsandBeauty,
    title = "Mathematics and Beauty",
    author = "Andrej {Démuth} and Slávka {Démuthová} and Adrián {Slavkovský}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1058307"
}