@book { WieflektierenSchulkinderdieVergangenheitsformenstarkerVerben,
    title = "Wie flektieren Schulkinder die Vergangenheitsformen starker Verben?",
    author = "Sonja {Wonner}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05913-7",
    url = "https://www.peterlang.com/document/1049433"
}