TY  - RPRT
TI  - Not the "Dark Ages".
AU  - W C Barker
AU  - R S Ledley
PY  - 1996
DO  - 10.1126/science.273.5272.165a
UR  - https://pubmed.ncbi.nlm.nih.gov/8668986/
ID  - 8668986
ER  -