@book { Lopraexpressionniste,
    title = "L’opéra expressionniste",
    author = "Eric {Lecler}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0038-9",
    url = "https://www.peterlang.com/document/1052092"
}