@book { StudiesintheEvolutionoftheEnglishLanguage,
    title = "Studies in the Evolution of the English Language",
    author = "Robert {Kiełtyka}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b18760",
    url = "https://www.peterlang.com/document/1069057"
}