Instructions: The paper is written in AMSTEX 1.1. it is a second try to get the transfered characters right. It replaces version 91-54. The BACKSLASH is represented by the combination BSL. The LEFT BRACE is represented by the combination LBR. The RIGHT BRACE is represented by the combination RBR. You have to resubstitute them again before you tex this file. For certain problematic characters the Tex-keywords have been used. Below you find some other special characters, which have not caused any problem up to now: THIS IS A RIGHT PARAN( THIS IS A LEFT PARAN) THIS IS A RIGHT QUOTE' THIS IS A LEFT QUOTE THIS IS A AT@ THIS IS A DOLLAR$ THIS IS A AMPERCENT% THIS IS A COMM ADD& THIS IS A NUMBER SIGN# THIS IS A DOUBLE-QUOTE" % % % BODY