*0011551699 *008900522s1990 xx# 000 0 nob *019 $bk *08230$a004.16 *100 $aVerwoerd, Willy$_117578000 *245 $aElektronisk erstatning for skinnpermen?$cav Willy Verwoerd *300 $aS. 104-106 : ill. *520 $aOm den elektroniske lommeplanleggeren Casio SF-7500 *773 $tDatatid$gÅrg. 12, nr 2 (1990)$x0332-8171$w(NO-LaBS)856848(tnr) *999 $z9000119482$anorart:9000119482 ^