TY  - RPRT
TI  - A nonsingular universe.
AU  - V Mukhanov
AU  - R Brandenberger
PY  - 1992
DO  - 10.1103/physrevlett.68.1969
UR  - https://pubmed.ncbi.nlm.nih.gov/10045270/
ID  - 10045270
ER  -