title: NASA's Search for Extraterrestrial Intelligence.
authors.affiliation: Jet Propulsion Laboratory, California Institute of Technology, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Klein
mesh_terms: D001256:Astronomy / Q000295:instrumentation; D003142:Communication; D018559:Exobiology; D005118:Extraterrestrial Environment; D008872:Microwaves; D012815:Signal Processing, Computer-Assisted; D013057:Spectrum Analysis / Q000295:instrumentation / Q000379:methods; D014481:United States; D018557:United States National Aeronautics and Space Administration