This is not actually a question!
I need a copy of F. & M. Riesz theorem
F. and M. Riesz, Über die Randwerte einer analytischen Funktion, Quatrième Congrès des Mathématiciens Scandinaves, Stockholm, (1916), pp. 27-44.
Could someone help me to access this article?
P.S. As I mentioned in a reply, I was finally able to find the document; I'm wondering if an English translation of the paper is available.
The paper was reprinted in Collected Papers of Marcel Riesz (Springer, 1988).
So you can get the paper simply by getting this book. (If your institution does not have the book in library, you can always try interlibrary loan.)
You can see some parts of the paper in Google Books. (This specific paper is on pages 195-212).
As mentioned in the comments, the paper seems to be available also online as a part of HathiTrust digital library; see here for the specific record.
However, the access might depend on your geographic location. As they explain on their website: