i needed some exact dates so i got to work
http://www.rootsweb.com/~dnkcen/danish_census_faq.html with many links to images and indexes.

I obtained help from the archivist on telephone duty at the danish national archives, and he also assured me that I may replicate any image on their sites.
telephone (0045)33923310 and ask for Arkivalier Vagten between 9:00 am and 12:00 CET

enjoy

Hugh W

on a dark evening in Copenhagen