@article{GDZPPN000364444, title = {Diameter and Radius in the Manhattan Metric.}, journal = {Discrete \& computational geometry}, volume = {5}, year = {1990}, pages = {351-356}, zbl = {0696.52007}, url = {http://dml.mathdoc.fr/item/GDZPPN000364444} }
Kleitman, D.J.; Du, D.Z. Diameter and Radius in the Manhattan Metric.. Discrete & computational geometry, Tome 5 (1990) pp. 351-356. http://gdmltest.u-ga.fr/item/GDZPPN000364444/