On the phylogeny graphs of degree-bounded digraphs

Seung Chul Lee, Jihoon Choi, Suh-Ryung Kim +1

Hefner [K. A. S. Hefner, K. F. Jones, S. -R. Kim, R. J. Lundgren and F. S. Roberts: $(i,j)$ competition graphs, Discrete Applied Mathematics, 32, (1991) 241-262] characterized acyc…