Z Kiraly, Recognizing graphic degree sequences and generating
all realizations. TR-2011-11, Egervary Research Group, H-1117, Budapest,
Hungary. ISSN 1587-4451 (2012).
B. Cloteaux, Is This for Real? Fast Graphicality Testing, Comput. Sci. Eng. 17, 91 (2015).
A. Berger, A note on the characterization of digraphic sequences, Discrete Math. 314, 38 (2014).
G. Cairns and S. Mendan, Degree Sequence for Graphs with Loops (2013).