To ensure that you can use the full functionality of this website, you should use one of the following browser versions (or higher) with the default settings:
- Microsoft Internet Explorer 9
- Google Chrome Version 44
- Apple Safari 6.0
- Mozilla Firefox Version 24
- Apple Safari on devices with iOS 6.0
- Android 4.3
Display on different devices
To allow this website content to be displayed on as many different devices as possible, a design has been used that adjusts itself to various screen resolutions. The content has been optimised for the following resolutions:
- Smartphone, portrait (width 320 pix)
- Tablet, portrait (width 768 pix)
- Tablet, landscape (width 1024 pix)
- Computer screen (width 1400 pix)
- Computer screen XL (width 1900 pix)
The display of the respective page elements (tables, images, text blocks, navigation etc.) may vary depending on the chosen device.
Display size and font
In order to adjust the display size in your browser, press down the “Ctrl” key (in Microsoft Windows) or the “control” key (on Macs) and turn the scroll wheel on your mouse.
Alternatively, press down the “Ctrl” key or the “control” key and then use the “Plus” key to enlarge the image or the “Minus” key to reduce it.
In this way, you can adjust the size of the page elements (including the fonts) as you wish. There is no alternative option available for adjusting only the size of the font.
Much of the content on this website is available in the following languages:
To change the language, click at the top right of the page on the country abbreviation of the current language. Then select your preferred language from the list of languages offered.
The PDF format ensures that the layout of texts and illustrations is displayed identically on various computers. At the same time, these documents are relatively small, so they are quick to download. You need Acrobat Reader in order to view PDF files. You can download the program free of charge from the producer Adobe:
Audio and video content
The playback of audio and video content on the website merely requires one of the supported browsers. You do not need a separate plug-in.
In some cases, video and audio files are also provided as a download on this site. To play the downloads back, we recommend the VLC Player which you can download from the developer:
This website does not use Adobe Flash, and is therefore compatible with a wide selection of systems. Above all, this also includes mobile devices.
If you subscribe to a newsletter, you will receive information at regular intervals in the form of e-mails.
Online display of the newsletter
The newsletters are designed like web pages with image and text content in an optimised layout. Should your e-mail program have problems displaying the content, then you can click on the link contained in every e-mail and which allows you to open the same information as a web page in your browser.
For the best results, we recommend opening e-mails with the following browsers:
- Outlook 2007
- Outlook 2010
- Outlook 2013
- Apple Mail on OS X
- Mail on iOS Version 7 or later
- Google Mail
- Yahoo Mail
- GMX Mail
Unsubscribe from the newsletter
In the footer of each e-mail, you will find a link where you can easily unsubscribe from receiving the respective e-mail.
Cookies are used for some functions on this website. For detailed information, please go to the following link:
You can find the settings for activating cookies under the following menu item in the respective browser:
Tools > Options > Privacy > History > “Remember history”
Settings > Privacy & Security > Block Cookies > Setting between “Always block” and “Always allow”
Tools > Internet options > Privacy > Setting between “High” and “Accept All Cookies”
Settings > Show advanced settings > Privacy > Content settings > “Allow local data to be set”.