LEADER 00636nam2 22002171i 450 001 990002288710403321 035 $a000228871 035 $aFED01000228871 035 $a(Aleph)000228871FED01 035 $a000228871 100 $a20030801d--------km-y0itay50------ba 200 1 $aPolymers containing boron and nitrogen.Amsterdam, 1962, p. 20-56. 463 0$1001000220654 701 1$aLappert,$bMichael F.$048497 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990002288710403321 959 $aFFABC 996 $aPolymers containing boron and nitrogen.Amsterdam, 1962, p. 20-56$9387753 997 $aUNINA DB $aING01