00441nam a2200157Ia 4500003000900000008004100009020000700050040001600057080001500073100001500088245009600103260001700199300001000216650004100226650001600267IN-BaIIA211028s9999    xx            000 0 eng d  aNO  cIIA Library  a524.1bZHD  aZhdanov, G 0aRays from the depths of spacecG. Zhdanov                                                    aMoscowc1958  a146p.  aAstronomy and astrophysics thesaurus  aCosmic rays