## Ref maintenance notes: Documentation on the AEtnaNova/Referee system, and auxiliary documentation on SETL

- ### Ref user manual

- ### Ref maintenance notes

- Programming in SETL. (Draft in Progress)

  > Chapter 2 - Elementary Types
  > Chapter 3 - Operations
  > Chapter 4 - Control structures
  > Chapter 5 - Procedures
  > Chapter 6 - Debugging
  > Chapter 7 - Packages and Libraries
  > Chapter 8 - Objects
  > Chapter 9 - Examples
  > Chapter 10 - Graphics and Socket Programming
  > Chapter 11 - Native packages
  > Chapter 12 - Data bases