I searched a little bit. In the Germany it is avaible in some University Libraries like Leipzig, Berlin, Detmold, Bielefeld and others.
It is far away from me. I am living in a rural district in Lower Saxony, 1 hour away from the next highway.
My daughter (she studies in Oxford, GB) will visit me in 14 days when I have birthday. I will ask her if she can try to get a copy of that article.