*0011578015
*008910129s1990    xx#           000 0 eng
*019  $bk
*08230$a155.413
*100  $aJunefelt, Karin$_166651800
*245  $aThe zone of proximal development and communicative development$cKarin Junefelt
*300  $aS. [135]-148
*773  $tNordic journal of linguistics$gVol. 13, no. 2 (1990)$x0332-5865$w(NO-LaBS)588923(tnr)
*999  $z9100125864$anorart:9100125864
^