This is an update request for the document 33e jaargang-nr.02-18 september 1959
Your paper was deposited in University of Groningen Digital Archive
and appears online at http://facsimile.ub.rug.nl:81/u?/tijdschrift,3163
Before we are able to make any updates or deletions, you must
ensure that the original record at this location is updated/removed.