00425nam a2200133Ia 4500082002100000100002000021245006600041260000900107300001300116500014600129500000500275653000600280700000500286  a519.544bV834.EP  aViswanathan, J.  aEstimation problems in affine hereditary differential systems  c1975  aii, 70p.  aA thesis submitted for the award of the degree of Doctor of Philosophy in the Faculty of Engineering. Bangalore, Indian Institute of Sciences  a  a   a