@article{10_4064_cm_20_2_243_247, author = {Jack B. Brown}, title = {Nowhere dense {Darboux} graphs}, journal = {Colloquium Mathematicum}, pages = {243--247}, publisher = {mathdoc}, volume = {20}, number = {2}, year = {1969}, doi = {10.4064/cm-20-2-243-247}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-20-2-243-247/} }