@book { KanonischeTheorienichtholonomerSysteme,
    title = "Kanonische Theorie nichtholonomer Systeme",
    author = "René {Weber}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1071097"
}