דנש קניג – הבדלי גרסאות

*{{cite book|last=Chartrand|first=Gary|title=A first course in graph theory|publisher=Dover Publications|location=Mineola, N.Y.|pages=|year=|isbn=9780486483689|author2=Zhang, Ping |author2-link=Ping Zhang (graph theorist)}}

*{{Citation |first=Dénes |last=Kőnig |title=Theorie der endlichen und unendlichen Graphen |publisher=Akademische Verlagsgesellschaft |location=[[Leipzig]] |year=1936 }}. Translated from [[German language|German]] by Richard McCoart, ''Theory of finite and infinite graphs'', Birkhäuser, 1990, {{isbn|0-8176-3389-8}}.