00303nam a2200109 a 450000500170000008200160001710000250003324500530005826000310011130000220014263000290016420251203091201.0  a530.41bDAT  aDattagupta, Sushanta  aRelaxation phenomena in condensed matter physics  aAcademic publicationc1987  a309p.b22cm.cHB.  aCondensed matter physics