To use this Digital Library to its fullest potential we recommend that you install on your computer the newest version of internet browser e.g. Firefox or Opera. The minimal requirements are:

• Firefox 3.6.x
• Internet Explorer 8.0

or any other compatible with these.

Some publications cannot be viewed without a specialized software: Java Virtual Machine, Adobe Reader (PDF format) or Lizardtech DjVu browser plugin (DjVu format) - such plugin for Windows can be downloaded from LizardTech and for Unix/Linux from DjVuLibre.