*0011484549 *008830503s1982 xx# 000 0 nob *019 $bk *08230$a510.7 *100 $aHammervoll, Tor$_162930500 *245 $aNivåsenkning i skolen? *300 $aS.32,34,36 *773 $tSymbol$gÅrg.7, nr.2 (1982)$x0333-0346$w(NO-LaBS)801321(tnr) *999 $z8300052551$anorart:8300052551 ^