@book { GyrgyLigeti,
    title = "György Ligeti",
    author = "Constantin {Floros}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04783-7",
    url = "https://www.peterlang.com/document/1064115"
}