Line-closed combinatorial geometries. - Mark D. Halsey (Discret. Math., 1987)

Extending a combinatorial geometry by adding a unique line. - Mark D. Halsey (J. Comb. Theory B, 1989)

Extensions of line-closed combinatorial geometries. - Mark D. Halsey (Discret. Math., 1990)

The relationship between the threshold dimension of split graphs and various dimensional parameters. - Margaret B. Cozzens; Mark D. Halsey (Discret. Appl. Math., 1991)

Random edge domination. - Peter Dolan; Mark D. Halsey (Discret. Math., 1993)

Cartesian Products and Edge Domination. - Robert W. Cutler III; Mark D. Halsey (Ars Comb., 2004)