00307nam a2200109 a 450000500170000008200150001710000060003211000310003824500590006926000480012830000210017620251203091145.0  a500,PROb_  d_  aIndian Academy of Sciences  aProceeding of the Indian academy of sciences;vol.17&18  aBangalorebIndian Academy of Sciencesc1943  a234e388p.c22cm