At 03:47 PM 2/10/98 +0200, you wrote: >Our astronomical magazine collected and discussed these noises >in the past. This was a long lasting topic during some years >Regards, Marko Hi, Marko, would you (or anyone) be willing to summarize some of the conclusions from those journal articles back in the '80s? Is anyone aware of more recent European publications on the subject? Clear skies, Lew