@book { ToSpychalski,
    title = "Téo Spychalski",
    author = "Renata {Jakubczuk}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05816-1",
    url = "https://www.peterlang.com/document/1049236"
}