TY  - BOOK
TI  - Kostenfreie Online-Lehrmittel
SN  - 9783781553958
UR  - http://www.content-select.com/index.php?id=bib_view&ean=9783781553958
UR  - https://content-select.com/de/portal/media/view/55102368-5b10-4aab-b803-0f44b0dd2d03
PB  - Verlag Julius Klinkhardt
CY  - 83670 Bad Heilbrunn
ER  -