All,
I solved the issue. There was an error in my date format in the CVS file. When fixed this, I was able to import URL’s (and thus use double quotes) in the details section.
Solution was to use the double quote twice inside the details section. Example:
"sep=,"
"title","start date","end date","time","location","details"
"Test Title",22.06.2015,22.06.2015,10:01:00,"Location","Some text <a title=""Link"" href=""http://www.website.com/"">Text</a>"