Bibliografía
Libros
Nora Hartsfield y Gerhard Ringel, "Pearls in Graph Theory: A Comprehensive Introduction", Courier Dover Publications, 2003.
G. Chartrand y L. Lesniak, "Graphs & Digraphs", Chapman & Hall/CRC, 2004.
Harvey M. Deitel y Paul J. Deitel, "Java: Como Programar", Prentice Hall Mexico, 2004.
Francisco Javier Ceballos, "Java 2. Lenguaje y Aplicaciones", RA-MA, 2007
Francisco Javier Ceballos, "Java 2. Interfaces Gráficas y Aplicaciones para Internet", RA-MA, 2006
Artículos
Joseph A. Gallian, A Dynamic Survey of Graph Labeling, 2005
Mousa Alfalayleh, Ljiljana Brankovic, Helen Giggins y Md. Zahidul Islam, "Towards the Graceful Tree Conjecture: A Survey".
Brian Beavers, "Golomb Rulers and Graceful Graphs".
Timothy A. Redl, "Graceful Graphs and Graceful Labelings: Two Mathematical Programming Formulations and Some Other New Results", 2003
Michelle Edwards, "A Survey of Graceful Trees", 2006
Pavel Hrnciar y Gabriela Monoszová, "A New Family of Graceful Trees"