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*008090618s1999    no            000 0 eng
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*020  $a8255312056$qh.
*035  $a(EXLNZ-47BIBSYS_NETWORK)990003714084702201
*035  $a(NO-LaBS)14884283(bibid)
*035  $a(NO-TrBIB)000371408
*035  $a(NO-TrBIB)092663915
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*040  $aNO-OsNB$bnob$ekatreg
*1001 $aRivertz, Hans Jakob$_112994800
*24513$aAn obstruction to isometric immersions of the three dimensional Heisenberg group$cby H.J. Rivertz
*260  $a[Oslo]$bMatematisk institutt, Universitetet i Oslo$c1999
*300  $a4 s.
*4901 $aPreprint series / Department of Mathematics, University of Oslo. Pure mathematics$vno. 22, Dec. 1999
*533  $aElektronisk reproduksjon$b[Norge]$cNasjonalbiblioteket Digital$d2009-05-06
*830 0$aPreprint series (Universitetet i Oslo. Matematisk institutt)$p[Pure] mathematics : trykt utg.$x0806-2439$vno. 22, Dec. 1999$w998120366204702201$_13774600
*85641$3Fulltekst$uhttps://urn.nb.no/URN:NBN:no-nb_digibok_2009050604018$yNettbiblioteket$zDigital representasjon
*901  $a80
*999  $aoai:nb.bibsys.no:990003714084702202$b2021-11-14T20:55:38Z$z990003714084702202
^