On page 904, two lines from bottom, before: “Millimeter wavelength instruments…”, add: ‘A 30-meter reflector in the Argentine has been brought into operation in 1966 at 10 and 20 centimeters. (Varsavsky, private communication).’

Copyright information

© Springer Science+Business Media Dordrecht 1967

Authors and Affiliations

  • Luboš Perek
    • 1
  1. 1.Astronomical InstituteCzechoslovak Academy of SciencesPrague 2Czechoslovakia

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