Author(s): Zurab Kakushadze
-- hep-th/0008128 was replaced with a revised version
on Thu, 2 Nov 2000 03:01:26 GMT (15kb) --
Paper: hep-th/0008128
Comments: 16 pages, revtex; expanded with additional explanation supporting the
conclusions of the paper
Report-no: YITP-00-36
URL: http://arXiv.org/abs/hep-th/0008128