S. Troebst, „Etničkite tradicii i sovremenosta. Megunaroden naučen sobir. Ohrid, 14—15 septemvri 1981 g. The Ethnie Traditions and the Contemporaneity. International Scientific Meeting. Ohrid, September 14th and 15th 1981“, SOF, Bd. 1, Nr. 1, S. 362–364, Nov. 2021.