On the maximum quasi-clique problem. - Jeffrey Pattillo; Alexander Veremyev; Sergiy Butenko; Vladimir Boginski (Discret. Appl. Math., 2013)

On clique relaxation models in network analysis. - Jeffrey Pattillo; Nataly Youssef; Sergiy Butenko (Eur. J. Oper. Res., 2013)

Approximating 2-cliques in unit disk graphs. - Jeffrey Pattillo; Yiming Wang; Sergiy Butenko (Discret. Appl. Math., 2014)