Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!philabs!seismo!hao!hplabs!sri-unix!LS.SRB@EE
From: LS.SRB@EE@sri-unix.UUCP
Newsgroups: net.sf-lovers
Subject: Subway named Mobius
Message-ID: <12363@sri-arpa.UUCP>
Date: Fri, 7-Oct-83 10:36:00 EDT
Article-I.D.: sri-arpa.12363
Posted: Fri Oct  7 10:36:00 1983
Date-Received: Mon, 10-Oct-83 09:17:23 EDT
Lines: 4

From:  Stephen R. Balzac <LS.SRB@EE>

can be found in Laughing Space, a new anthology by Asimov and Jeppson.
I don't remember the title of the story, but I can check.