I was easy to restore the content by inserting it to a new page from the cache.
However, the problem is that Google search on the relevant term omregning karakterskala, in which the old pages appeared as no. 5, now directs to a Doh! page. This will make people think that the page does not exist anymore and give up, thus the old page is bad competition for the new page. I suppose there is no way I can remove the old page from the Google cache, can I in anyway get acces to the old page to redirect to the new? I have tried by inserying the old adress in "page slug", that did not help.