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*1001 $aHellman, Riitta$0(NO-TrBIB)90377173$_27656900
*24510$aApproaches to user-centered information systems$cby Riitta Hellman
*260  $aTurku$bUniversity of Turku$c1989
*300  $a189 s.$bill
*4901 $aReport / Department of Computer Science, University of Turku$vA55
*502  $aAvhandling (doktorgrad) - University of Turku, 1989
*653  $ainformasjonssystemer$asystemutvikling$asystemanalyse$_49660700
*830 0$aReport (Turun yliopisto. Tietojenkäsittelyoppi) Series A$x0357-8526$vA55$w998440700174702201$_49660800
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*999  $aoai:nb.bibsys.no:999000692794702202$b2021-11-14T20:00:08Z$z999000692794702202
^