Type:		Journal, Article
Title:		On a Stationary System With Spherical Symmetry Consisting of Many Gravitating Masses
Author(s):		Einstein, A.
Date:		1939/10
Journal (full):		The Annals of Mathematics, Second Series
Volume:		40
Issue:		4
Start Page:		922
End Page:		936
Link:		http://www.jstor.org/discover/10.2307/1968902