@article{1103051862,
author = {Green, John W.},
title = {On the level surfaces of potentials of masses with fixed center of gravity.},
journal = {Pacific J. Math.},
volume = {2},
number = {4},
year = {1952},
pages = { 147-152},
language = {en},
url = {http://dml.mathdoc.fr/item/1103051862}
}
Green, John W. On the level surfaces of potentials of masses with fixed center of gravity.. Pacific J. Math., Tome 2 (1952) no. 4, pp. 147-152. http://gdmltest.u-ga.fr/item/1103051862/