TY  - RPRT
TI  - Self-dual N=8 supergravity as closed N=2(4) strings.
AU  - W Siegel
PY  - 1993
DO  - 10.1103/physrevd.47.2504
UR  - https://pubmed.ncbi.nlm.nih.gov/10015844/
ID  - 10015844
ER  -