@book { DerFlexionsakzentimmittelbulgarischenEvangelie1139NBKM,
    title = "Der Flexionsakzent im mittelbulgarischen Evangelie 1139 (NBKM)",
    author = "Wolfgang {Hock}",
    year = "1992",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12759",
    url = "https://www.peterlang.com/document/1067152"
}