Etiqueta de registo: 00284nx b22000853 45
001 665399
100 ## $a19890804apora0103 ba0
152 ## $aRPC
210 12 $aNATO Advanced Research Workshop on Instructional Models in Computer-Based Learning Environments,$eUniversity of Twente, Netherlands,$f1992
801 #0 $aPT$bBN
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