Negative Cycles in Complete Signed Graphs. - Dragos Radu Popescu; Ioan Tomescu (Discret. Appl. Math., 1996)

Une méthode d'énumération des cycles négatifs d'un graphe signé. - Dragos Radu Popescu (Discret. Math., 1996)

Bonferroni Inequalities and Negative Cycles in Large Complete Signed Graphs. - Dragos Radu Popescu; Ioan Tomescu (Eur. J. Comb., 1996)

Balance in Systems of Finite Sets with Applications. - Dragos Radu Popescu (J. Univers. Comput. Sci., 2007)