00342nam a2200121Ia 4500082002000000100002100020245002300041260005000064300001600114490008000130500000500210700000500215  a515.42bR165.PM  aRamachandran, D.  aPerfect measuresb  aNew DelhibIndian Statistical Institutec1978  a221p. Bibl.  aIndian Statistical Institute, Theoretical Statistics and Mathematics series  a  a