I regret to announce that last week I received the information that Rudolf Fritsch had died. Here is the email I received from his wife Gerda: Dear Mike, in the early morning hours of Tuesday, June 12th, 2018, my husband passed away. Please find the notice of death in the attachment. Rudo suggested that you might want to distribute the message on the categories list. Sincerely yours, Gerda Fritsch The attachment was too large to post on the categories list. Michael [For admin and other information see: http://www.mta.ca/~cat-dist/ ]