@article{GDZPPN000363995, title = {A Note on the Circle Containment Problem.}, journal = {Discrete \& computational geometry}, volume = {4}, year = {1989}, pages = {263-264}, zbl = {0673.52008}, url = {http://dml.mathdoc.fr/item/GDZPPN000363995} }
Hayward, R. A Note on the Circle Containment Problem.. Discrete & computational geometry, Tome 4 (1989) pp. 263-264. http://gdmltest.u-ga.fr/item/GDZPPN000363995/