There's a pretty good one in the New Yorker (paywall, though I've seen scans of the article floating around): http://www.newyorker.com/archive/1995/05/29/1995_05_29_045_T...
http://people.duke.edu/~hpgavin/cee421/citicorp1.htm
This is much more comprehensive and interesting than the source linked in OP and elsewhere.
I discovered this a few years back while doing some reading for an ethics class, and was fascinated by it.