Proper Down-Coloring Simple Acyclic Digraphs. - Geir Agnarsson; Ágúst S. Egilsson; Magnús M. Halldórsson (AGTIVE, 2003)

Indexing of Tables Referencing Complex Structures - Ágúst S. Egilsson; Hakon Gudbjartsson (CoRR, 2003)

Vertex coloring acyclic digraphs and their corresponding hypergraphs. - Geir Agnarsson; Ágúst S. Egilsson; Magnús M. Halldórsson (Discret. Appl. Math., 2008)