@book {9783451806650, title = "Kleinstkinder entdecken Frühling und Sommer", isbn = "9783451806650", url = "http://www.content-select.com/index.php?id=bib_view&ean=9783451806650", url = "https://content-select.com/de/portal/media/view/55950ff0-4f14-4e19-8b65-3810b0dd2d03", publisher = "Verlag Herder", }