@book { TheEntrenchmentoftheunusalterumPattern,
    title = "The Entrenchment of the «unus alterum» Pattern",
    author = "Mikołaj {Nkollo}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-07067-5",
    url = "https://www.peterlang.com/document/1050620"
}