You said it. He proposed the model for digital AND analog communication still in use today. Although being a digital software person I admit I've never been motivated to read the part about continuous channels.
I was motivated however to install an archway for my house from the exact shape in Figure 7 (binary entropy function)
> No citations
The paper contains citations. But they are hidden in the footnotes - see page 1 or page 5 for example.
And it's easily readable with basic math/engineering knowledge. Highly recommended.
Erdos has a few papers that are "that good" as long as you know all the theory leading to the new insight, but none (that I read) are as clear and freestanding as Shannon's AMToC
Math is different from empirical work. Yes, Shannon's paper is great, but that's not really relevant here because it's in a completely different paradigm.
[1] A Mathematical Theory of Communication - http://math.harvard.edu/~ctm/home/text/others/shannon/entrop...