*0011676672
*008961024s1980    xx#           000 0 nob
*019  $bk
*08230$a512.7
*100  $aJohnsen, Ben$_130805000
*245  $aKunsten å telle eller Pólyas teorem
*300  $aS.104-115
*773  $tNormat$gÅrg.28, nr.3 (1980)$x0801-3500$w(NO-LaBS)247358(tnr)
*999  $z9600030584$anorart:9600030584
^