Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/36
Is Reference of Théorie des graphes-fr#Sense
Grafentheorie-nl#Sense
Teoría de los grafos-es#Sense
Θεωρία γραφημάτων-el#Sense
Grafteori-da#Sense
Graphentheorie-de#Sense
Teoria di graphs-it#Sense
Teoria dos gráficos-pt#Sense
Theory of graphs-en#Sense