00253nam a2200109 a 450000500170000002000150001708200220003210000170005424500300007126000240010130000180012520251203090948.0  a0521265932  a531.1133,bD, sac  aSachdev, P.L  aNonlinear diffusive waves  aNew YorkbCUPc1987  avi,246p, 22cm