LEADER 00683nam2 22002171i 450 001 990002274640403321 035 $a000227464 035 $aFED01000227464 035 $a(Aleph)000227464FED01 035 $a000227464 100 $a20030801d--------km-y0itay50------ba 200 1 $aSome aspects of the ultraviolet absorption spectra of the pteridines. London, 1954,p. 74-91. 463 0$1001000221614 701 1$aMason,$bS.F.$0346830 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990002274640403321 959 $aFFABC 996 $aSome aspects of the ultraviolet absorption spectra of the pteridines. London, 1954,p. 74-91$9385172 997 $aUNINA DB $aING01