TY - RPRT TI - Cosmological domain-wall problem in the E8 x E8 superstring theory. AU - R Holman AU - TW Kephart AU - DB Reiss PY - 1988 DO - 10.1103/physrevd.38.1141 UR - https://pubmed.ncbi.nlm.nih.gov/9959252/ ID - 9959252 ER -