00472nam a2200181 a 450000500170000002000150001708200210003210000220005324500200007525000080009526000260010330000210012969000200015096400190017099700180018999900170020795200660022420251203091812.0  a052142741X  a530.429,bD, cha  aChandrasekhar, S.  aLiquid crystals  a2nd  aCambridgebCUP.c1992  aXV,460P.c22 CM.  aLiquid crystals  bEngcdefg_  a71793 LIBSC C  c53251d53251  00104070aPUbPUd1998-04-08l0o530.429, D, chap71793yBK