*0011617936 *008931119s1993 xx# 000 0 eng *019 $bk *08230$a387.2 *100 $aBråthen, Harald$4ivr$_131991600 *245 $aRisk analysis helps develop class rules *300 $aS. 16-18 : ill. *520 $aIntervju med Ivar A. Manum, Tor-Christian Mathiesen *700 $aManum, Ivar A.;$4ive$_167693000 *700 $aMathiesen, Tor-Christian$4ive$_166774300 *773 $tDNV forum$gno. 3 (1993)$x0803-7108$w(NO-LaBS)500916(tnr) *999 $z9300165565$anorart:9300165565 ^