*0011493195
*008840704s1983    xx#           000 0 eng
*019  $bk
*08230$a622.186
*100  $aRyghaug, Per$_143140500
*245  $aGeochemical exploration methods for niobium and rare earth elements at Sæteråsen, Vestfold volcanic area, Oslo Graben$cPer Ryghaug
*300  $aS. [1]-13 : ill., kart
*651  $aVestfold$_10665000
*773  $tNorsk geologisk tidsskrift$gVol. 63, no. 1 (1983)$x0029-196X$w(NO-LaBS)279607(tnr)
*999  $z8400061012$anorart:8400061012
^