@book { ChallengesandReformsinVocationalEducation,
    title = "Challenges and Reforms in Vocational Education",
    author = "Stefanie {Stolz} and Philipp {Gonon}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0337-3",
    url = "https://www.peterlang.com/document/1052733"
}