TY  - RPRT
TI  - Low energy effective string cosmology.
AU  - EJ Copeland
AU  - A Lahiri
AU  - D Wands
PY  - 1994
DO  - 10.1103/physrevd.50.4868
UR  - https://pubmed.ncbi.nlm.nih.gov/10018138/
ID  - 10018138
ER  -