1. Christian Altomare, Degree sequences, forcibly chordal graphs and combinatorial proof systems, PhD thesis, The Ohio State University, December 2009, http://etd.ohiolink.edu.
2. Maria Chudnovsky, Paul Seymour, The proof of Raoʼs Conjecture on degree sequences, in preparation.
3. Graph Theory;Diestel,2000
4. Gráfok előírt fokú pontokkal;Erdös;Mat. Lapok,1960
5. Some properties of graphs with multiple edges;Fulkerson;Canad. J. Math.,1965