Thevenins theorem original published paper

Hello, would anyone tells me where I can get the original published paper of the famous Thevenin's theorem ?

 

This paper contains it, or at least part of it - I think it's all there. See page 6. If you read the rest of this article, you will see that the author believes Thevenin was not the first to discover this principle.
BTW, I found this by Googling "thevenin original paper". It was the second hit. Amazing, huh?