Generalized semigroups and cosine functions. - Matematicki institut SANU (Beograd), 2011. - (Zbornik Radova).
11th yugoslav geometrical seminar (invitated papers) held on Divcibare, 10-17 october 1996. - Matematicki institut SANU (Beograd), 1997. - (Zbornik Radova).
Applications of graph spectra. - Matematicki institut SANU (Beograd), 2009. - (Zbornik Radova; 13).
Two topics in mathematics. - Matematicki institut SANU (Beograd), 2004. - (Zbornik Radova; 10).
Four topics in mathematics. - Matematicki institut SANU (Beograd), 2000. - (Zbornik Radova; 9).
Topics from mathematics and mechanics. - Matematicki institut SANU (Beograd), 1998. - (Zbornik Radova; 8).