00512nam a2200169Ia 4500003000900000008004100009040001600050080001700066100002400083245009300107260003500200300001300235650004100248650001800289650001800307650001700325IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a523.755bBIL  aBillings, Donald E. 2aA guide to the solar coronacDonald E. Billings                                           aNew YorkbAcademic Pressc1966  ax, 323p.  aAstronomy and astrophysics thesaurus  aCoronal holes  aCoronal loops  aSolar corona