A websearch on the name of my old bbs yielded a page in England where listings of BBSes outside the US are gathered, to augment those at http://bbslist.textfiles.com/. Jason Scott is good at gathering BBS history, but decided to focus on the US. So, Koos z'n Doos is listed in BBSlist, Netherlands, other and I updated the wikia page for Koos z'n Doos.