TY  - RPRT
TI  - Einstein equation with quantum corrections reduced to second order.
AU  - L Parker
AU  - JZ Simon
PY  - 1993
DO  - 10.1103/physrevd.47.1339
UR  - https://pubmed.ncbi.nlm.nih.gov/10015710/
ID  - 10015710
ER  -