TY  - RPRT
TI  - Four-dimensional black holes in string theory.
AU  - SB Giddings
AU  - J Polchinski
AU  - A Strominger
PY  - 1993
DO  - 10.1103/physrevd.48.5784
UR  - https://pubmed.ncbi.nlm.nih.gov/10016245/
ID  - 10016245
ER  -