The previous page is sending you to https://www.vitalsource.com/products/elektrotechnik-fur-gebaudetechnik-und-maschinenbau-andreas-b-ker-hartmuth-v9783658141899?duration=30&srsltid=AfmBOor5sY3Ds6nFL2nAiIzL3M73_snEKBlcs4-6dXg0VFpRvnlJxpygK58.

 If you do not want to visit that page, you can return to the previous page.