r5rs-doc 20010328-7 (arm64 binary) in ubuntu trusty

 The report gives a defining description of the programming language
 Scheme. Scheme is a statically scoped and properly tail-recursive
 dialect of the Lisp programming language invented by Guy Lewis
 Steele Jr. and Gerald Jay Sussman. It was designed to have an
 exceptionally clear and simple semantics and few different ways to
 form expressions. A wide variety of programming paradigms, including
 imperative, functional, and message passing styles, find convenient
 expression in Scheme.
 .
 The documentation in this package is in GNU info, HTML, and PDF formats.