@book { ZweiundsiebzigLiederdesbulgarischenVolkes,
    title = "Zweiundsiebzig Lieder des bulgarischen Volkes",
    author = "Gerhard {Gesemann}",
    year = "1996",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b14619",
    url = "https://www.peterlang.com/document/1084399"
}