00409nam a2200157Ia 4500003000400000005001700004008004100021040000600062082001900068100001900087245007300106250001200179260003700191300001100228650001200239OSt20250523105405.0250310s9999||||xx |||||||||||||| ||und||  c.  a530.0202bK862  aKoshkin, N. I. 0aHandbook of elementary physics /cN. I. Koshkin and M. G. Shirkevich  a3rd ed.  aMoscow :bMir publishers,c1977.  a272 p. 0aPhysics