00661nam a2200205Ia 4500003000900000008004100009020001800050040001600068080001900084100002500103245007300128260004200201300001400243650004100257650001500298700002500313942000700338999001500345952009500360IN-BaIIA211028s9999    xx            000 0 eng d  a90-277-0499-6  cIIA Library  a551.510.5bGIR  aGiraud, Alain911345 0aIonospheric techniques and phenomenacAlain Giraud and Michel Petit.  aDordrechtbD. Reidel Publishingc1978  axx, 264p.  aAstronomy and astrophysics thesaurus  aIonosphere  aPetit, Michel911346  cBK  c6626d6626  00104070aBANbBANcGENd1980-10-24l0o551.510.5/ GIRp7369r2021-11-05w1980-10-24yBK