00327nam a2200109Ia 4500008004100000040001100041100002300052245005500075260006100130300001600191300001000207251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aR. Ananthakrishnan 0aCurrent SciencebA Fortnightly Journal of Research  cSeptember 5, 1987bIndian Academy of SciencesaBangalore  aP. 857-1306  bV. 56