How to import a calendar from outlook to evolution?

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http://askubuntu.com – I would like to import calendar information from outlook (XP) to evolution. The pst-import does not work for me at the moment (Ubuntu 11.10, evolution 3.2.1, it does not recognize pst-files as such, bug filed) and csv-files (even calendar-csv) are imported into the addressbook. Readpst seems to work for email (folders) only. It should also import words with umlaut and special character. (HowTos)