@inbook{400875, title = {D\'enes K\"onig [fotografie]}, booktitle = {Teorie graf\r u, 1736--1963}, series = {GDML\_Books}, publisher = {Prometheus}, address = {Praha}, year = {1997}, pages = {105-105}, url = {http://dml.mathdoc.fr/item/400875} }
(éd.). Dénes König [fotografie], dans Teorie grafů, 1736–1963, GDML_Books, (1997), p. 105. http://gdmltest.u-ga.fr/item/400875/