And what are the hardcore books on lambda calculations, recursion, such that there would be more mathematics and less programming?

Question

Programming

Recommend a good book on lambda calculations, recursion and all that. I would like to better understand the fundamental theoretical aspects of functional programming.
I was advised: "An Introduction to Functional Programming Through Lambda Calculus" but before buying I wanted to consult with the community

Answer 1

At MIT they teach according to SICP, lying around on the net in the public domain, it seems translated into Russian.