LEADER 01184nam a2200385 i 4500 001 991000912689707536 005 20020507175729.0 008 931110s1987 us ||| | eng 020 $a0821850725 035 $ab10774816-39ule_inst 035 $aLE01304216$9ExL 040 $aDip.to Matematica$beng 082 0 $a512.4 084 $aAMS 16A27 (1985) 084 $aAMS 20C05 084 $aAMS 20C07 084 $aAMS 20F 084 $aAMS 20F05 084 $aAMS 20F10 084 $aAMS 20F12 084 $aAMS 20F14 084 $aAMS 20H25 084 $aQA171.G88 100 1 $aGupta, Narain$0535438 245 10$aFree groups rings /$ced. by Narain Gupta 260 $aProvidence, R. I. :$bAmerican Mathematical Society,$c1987 300 $axi, 129 p. ;$c26cm 490 0 $aContemporary mathematics,$x0271-4132 ;$v66 650 0$aGroup rings 907 $a.b10774816$b23-02-17$c28-06-02 912 $a991000912689707536 945 $aLE013 20F GUP11 (1987)$g1$i2013000072616$lle013$o-$pE0.00$q-$rl$s- $t0$u4$v1$w4$x0$y.i10873600$z28-06-02 996 $aFree groups rings$9922620 997 $aUNISALENTO 998 $ale013$b01-01-93$cm$da $e-$feng$gus $h0$i1