00266nam a2200121Ia 4500020001800000082001600018100001600034245001900050260003800069300002700107500000500134700000500139  a9789814299091  a512bY35.LR  aYau, Donald  aLambda-ringsb  aSingaporebWorld Scientificc2010  axiv, 190p. Bibl. Index  a  a