TY  - RPRT
TI  - A reply from Earth?
AU  - M A Michaud
AU  - J Billingham
AU  - J Tarter
DO  - 10.1016/0094-5765(92)90115-y
UR  - https://pubmed.ncbi.nlm.nih.gov/11537165/
ID  - 11537165
ER  -