@book { SpracherwerbimKleinkindalter, title = "Spracherwerb im Kleinkindalter", author = "Simone {Kaletsch}", year = "2006", publisher = "GRIN Verlag", address = "München, Germany", doi = "10.3239/9783638471978", url = "https://www.hausarbeiten.de/document/51154" }