TY - RPRT TI - Baryogenesis and the gravitino problem in superstring models. AU - G Lazarides AU - C Panagiotakopoulos AU - Q Shafi PY - 1986 DO - 10.1103/physrevlett.56.557 UR - https://pubmed.ncbi.nlm.nih.gov/10033225/ ID - 10033225 ER -