TY  - RPRT
TI  - Superluminous laser pulse in an active medium.
AU  - DL Fisher
AU  - T Tajima
PY  - 1993
DO  - 10.1103/physrevlett.71.4338
UR  - https://pubmed.ncbi.nlm.nih.gov/10055221/
ID  - 10055221
ER  -