00502nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001500084100001700099245009200116260003400208300001500242650004100257650001700298650001700315IN-BaIIA211028s9999    xx            000 0 eng d  a3-540-18433-3  cIIA Library  a52-13bLEN  alena, Pierre 0aObservational astrophysicscPierre lena                                                  aBerlinbSpringer-Verlagc1988  axii, 328p.  aAstronomy and astrophysics thesaurus  aAstrophysics  aObservations