00346cam a2200145ua 4500020001200000041001000012082001900022100001700041245005600058250001200114260004500126300001200171365001200183504000500195  cRs 1.87  aengh  a530.11bSMI/RE  aSmilga, V  .  aRelativity and man / cV Smilga.hTextual Documents  a1 / b.  aMoscow : bProgress Publishers , c1955.  a346 ; .  aRs 1.87  a