@article{03791148, title = {Sums of distances between points of a sphere.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {5}, year = {1982}, pages = {707-714}, doi = {10.1155/S0161171282000647}, zbl = {0502.52013}, language = {en}, url = {http://dml.mathdoc.fr/item/03791148} }
Harman, Glyn. Sums of distances between points of a sphere.. International Journal of Mathematics and Mathematical Sciences, Tome 5 (1982) pp. 707-714. doi : 10.1155/S0161171282000647. http://gdmltest.u-ga.fr/item/03791148/