@article { OnWhatWereOathsTakeninChristianLatinEuropeintheHighMiddleAges12thEarly14thCenturies,
    title = "On What Were Oaths Taken in Christian Latin Europe in the High Middle Ages (12th-Early 14th Centuries)?",
    author = "Michalina {Duda} and Sławomir {Jó źwiak}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    journal = "Mediaevistik",
    number = "1",
    volume = "32",
    doi = "10.3726/med.2019.01.06",
    url = "https://www.peterlang.com/document/1272151"
}