00306nam a22001097a 4500020001600000040000900016082001800025100002100043245004200064260004800106650004200154  a047111216-x  cNust  a537.6226bPER  aSankar Das Sarna  aPerspectives in quantum  Hall effects  aNew York:bJohn Willey and sons Inc,c1997.  aPerspectives in quantum  Hall effects