Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleBlanco proeven.AuthorsPost, J. J.PublicationStatistica Neerlandica, 1946, Vol 1, Issue 6, p317ISSN0039-0402Publication typeArticleDOI10.1111/j.1467-9574.1946.tb00346.x