00721nam a2200217Ia 4500003000900000008004100009020001800050040001600068080002200084100002000106245010000126260004200226300001500268650002100283650004100304650002500345650001300370942000700383999001500390952009800405IN-BaIIA211028s9999    xx            000 0 eng d  a90-277-0680-8  cIIA Library  a082.2:52bIAU-S71  aBumba, V.99917 0aBasic mechanisms of solar activitycV. Bumba                                                     aDordrechtbD. Reidel Publishingc1976  axvi, 481p.  aActive sun95272  aAstronomy and Astrophysics Thesaurus  aSolar activity91424  aSunspots  cBK  c5725d5725  00104070aBANbBANcGENd1978-03-16l0o082.2:52/ IAU-S71p6401r2021-11-05w1978-03-16yBK