Na sequência do 10º aniversário do fim do SA

Na sequência do 10º aniversário do fim do Acesso Selectivo (SA) o qual ocorreu dia 1 de Maio, encontrei uma página com as primeiras edições da coluna Innovation da revista GPS World:

• GPS: A multipurpose system by D. Wells and A. Kleusberg
  January/February 1990, Vol. 1, No. 1, pp. 60-63.


• The limitations of GPS by A. Kleusberg and R.B. Langley
  March/April 1990, Vol. 1, No. 2, pp. 50-52.


• Why is the GPS signal so complex? by R.B. Langley
  May/June 1990, Vol. 1, No. 3, pp. 56-59.


• Electronic charts and GPS by M.J. Casey and P. Kielland
  July/August 1990, Vol. 1, No. 4, pp. 56-59.


• The issue of selective availability by Y. Georgiadou and K.D. Doucet
  September/October 1990, Vol. 1, No. 5, pp. 53-56.


• Comparing GPS and GLONASS by A. Kleusberg
  November/December 1990, Vol. 1, No. 6, pp. 52-54.


• The GPS receiver: An introduction by R.B. Langley
  January 1991, Vol. 2, No. 1, pp. 50-53.


• Precise, real-time dredge positioning by S.R. DeLoach
  February 1991, Vol. 2, No. 2, pp. 43-45.


• The orbits of GPS satellites by R.B. Langley
  March 1991, Vol. 2, No. 3, pp. 50-53.


• Ionospheric effects on GPS by J.A. Klobuchar
  April 1991, Vol. 2, No. 4, pp. 48-51.


• GPS vehicle location and navigation by E.J. Krakiwsky
  May 1991, Vol. 2, No. 5, pp. 50-53.


• Continuous monitoring of crustal deformation by Y. Bock
  June 1991, Vol. 2, No. 6, pp. 40-47.


• The mathematics of GPS by R.B. Langley
  July/August 1991, Vol. 2, No. 7, pp. 45-50.


• GPS in civil aviation by K.D. McDonald
  September 1991, Vol. 2, No. 8, pp. 52-59.


• GPS – satellites of opportunity for ionospheric monitoring by D. Coco
  October 1991, Vol. 2, No. 9, pp. 47-50.