Competition Graphs of Strongly Connected and Hamiltonian Digraphs. - Kathryn Fraughnaugh; J. Richard Lundgren; Sarah K. Merz; John S. Maybee; Norman J. Pullman (SIAM J. Discret. Math., 1995)

The p-Competition Graphs of Strongly Connected and Hamiltonian Digraphs. - J. Richard Lundgren; Patricia A. McKenna; Larry J. Langley; Sarah K. Merz; Craig W. Rasmussen (Ars Comb., 1997)

The domination and competition graphs of a tournament. - David C. Fisher; J. Richard Lundgren; Sarah K. Merz; K. Brooks Reid (J. Graph Theory, 1998)

Domination Graphs with Nontrivial Components. - David C. Fisher; David R. Guichard; J. Richard Lundgren; Sarah K. Merz; K. Brooks Reid (Graphs Comb., 2001)

Domination Graphs of Tournaments with Isolated Vertices. - David C. Fisher; J. Richard Lundgren; David R. Guichard; Sarah K. Merz; K. Brooks Reid (Ars Comb., 2003)

Domination Parameters and Gallai-type Theorems for Directed Trees. - Jason Albertson; Audene Harris; Larry J. Langley; Sarah K. Merz (Ars Comb., 2006)

The (1, 2)-step competition graph of a tournament. - Kim A. S. Factor; Sarah K. Merz (Discret. Appl. Math., 2011)