00398nam a2200121Ia 4500082002600000100003600026245005600062260004900118300000900167490006400176500000500240700003100245  a519.5024574bSa246.SS  aSarma, Y. R. and Chakrborty, R.  aSome statistical models for human multiple birthsb  aCalcuttabIndian Statistical Institutec1969  a21p.  aISI, RTS Technical Report no. Mathematical Statistics 52/69  a  aChakrborty, R. ; jt. auth.