00452nam a2200133Ia 4500082002000000100002900020245007100049260004900120300001100169500012200180500000500302653000600307700000500313  a515.42bR165.CT  aRamachandran, Doraiswamy  aContributions to the theory of perfect measures and ergodic theory  aCalcuttabIndian Statistical Institutec1973  av, 126  a"Thesis submitted to the Indian Statistical Instt. in partial fulfilment of the requirements for the award of Ph. D."  a  a   a