Connection digraphs and second-order line digraphs. - Lowell W. Beineke; Christina Zamfirescu (Discret. Math., 1982)

On optimal embeddings of metrics in graphs. - Wilfried Imrich; J. M. S. Simões-Pereira; Christina Zamfirescu (J. Comb. Theory B, 1984)

An Algorithmic Characterization of Total Digraphs. - Miroslawa Skowronska; Maciej M. Syslo; Christina Zamfirescu (J. Algorithms, 1986)

Hamiltonian Properties of Grid Graphs. - Christina Zamfirescu; Tudor Zamfirescu (SIAM J. Discret. Math., 1992)

Hamiltonian properties of Toeplitz graphs. - René van Dal; Gert A. Tijssen; Zsolt Tuza; Jack A. A. van der Veen; Christina Zamfirescu; Tudor Zamfirescu (Discret. Math., 1996)

Cyclic and cliquewise connectedness of line graphs. - Christina Zamfirescu (Discret. Math., 1997)

Intersections of longest cycles in grid graphs. - B. Menke; Tudor Zamfirescu; Christina Zamfirescu (J. Graph Theory, 1997)

Hamiltonicity of Topological Grid Graphs. - Christina Zamfirescu; Tudor Zamfirescu (J. Univers. Comput. Sci., 2007)