*0011507994
*008860416s1985    xx#           000 0 nob
*019  $bk
*08230$a372.7
*100  $aWinther, Stein$_17726900
*245  $aOm problemløsning$cStein Winther
*300  $aS. 18-20
*773  $tSymbol$gÅrg. 10, nr 3 (1985)$x0333-0346$w(NO-LaBS)801321(tnr)
*999  $z8600075510$anorart:8600075510
^