"Bulletin of Society of Mathematicians Banja Luka" No. 15, ISSN 0354-5793 (p), ISSN 1986-521X (o).
 
Milan Janjić: A Proof of Generalized Laplace's Expansion Theorem, 5-7

Duško Bogdanić, Daniel A. Romano and Milovan Vinčić: A Connection between Quasi-antiorders and Pairs of Coequalities; 9-14