@article{05508414, title = {The Hlawka-Djokovi\'c inequality and points in unitary spaces.}, journal = {General Mathematics}, volume = {15}, year = {2007}, pages = {67-74}, zbl = {1164.26334}, language = {en}, url = {http://dml.mathdoc.fr/item/05508414} }
Janous, Walther. The Hlawka-Djoković inequality and points in unitary spaces.. General Mathematics, Tome 15 (2007) pp. 67-74. http://gdmltest.u-ga.fr/item/05508414/