Ergodicity for physicists

Textbooks on statistical mechanics usually discuss ergodicity only by words, without presenting any quantitative analysis (equations).

On the other hand, serious discussions of ergodicity are usually written in a mathematically highly rigorous form, which is difficult to comprehend by physicists who are not mathematicians.

I would like to learn more about ergodicity at a level somewhere between those two. I would like something which contains equations, but is adjusted to physicists, not mathematicians. Can someone recommend an appropriate paper or a book?

Thanks!