*0011503813 *008851008s1985 xx# 000 0 nob *019 $bk *08230$a521.3 *100 $aThorvaldsen, Steinar$_135228500 *245 $a"Beviste" Kepler planetlovene?$cSteinar Thorvaldsen *300 $aS. [76]-87 *773 $tNormat$gÅrg. 33, h. 2 (1985)$x0801-3500$w(NO-LaBS)247358(tnr) *999 $z8500071935$anorart:8500071935 ^