@book { DysgrammatismusErscheinungsbildUrsachenDiagnoseTherapie,
    title = "Dysgrammatismus. Erscheinungsbild, Ursachen, Diagnose, Therapie",
    author = "Isabel {Stamer}",
    year = "2004",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638241946",
    url = "https://www.hausarbeiten.de/document/20261"
}