@book { EntwicklungundEvaulationeinesMathematikcurriculumsfrAuslnderkinder,
    title = "Entwicklung und Evaulation eines Mathematikcurriculums für Ausländerkinder",
    author = "",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070526"
}