*0011189663 *008130531s1972 xx# 000 0 nob *019 $bk *100 $aBalle, Gunnar$_140484400 *245 $a[Forsker, forstkandidat, lic. agr. Torstein Opheim]$cG.B. *300 $aS. 166 *600 $aOpheim, Torstein$_140506000 *773 $tKart og plan$gB. 32, årg. 64, nr. 2 (1972)$x0047-3278$w(NO-LaBS)588075(tnr) *999 $z1300543055$anorart:1300543055 ^