00270nam a2200109Ia 4500008004100000022001400041040001100055245002000066260004800086300001600134300001000150251112s9999||||xx |||||||||||||| ||und||  a0011-3891  aCNCLSA 0aCurrent Science  c1999bIndian Academy of SciencesaNew Delhi  aP. 617-1220  bV. 77