I suggest you start with the Nature paper from the guys at HP[1]. Then move on to Leon Chua's original and later papers. [1]: http://www.nature.com/nature/jour

I suggest you start with the Nature paper from the guys at HP[1]. Then move on to Leon Chua's original and later papers. [1]: http://www.nature.com/nature/journal/v453/n7191/full/nature06932.html http://www.nature.com/nature/journal/v453/n7191/full/nature0...