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*1001 $aErikson, Warren John$0(NO-TrBIB)90663631$_24403900
*24513$aAn analytical cost evaluation of computer time-sharing systems
*260  $aAnn Arbor, Mich.$bUniversity Microfilms$c1976
*300  $axix, 257 bl.$bdiagr.
*502  $aAvhandling (doktorgrad) - University of California, 1967
*534  $aFaksimileutg. Originalutg. Los Angeles, 1967
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