Wirth wrote many articles about the design of his programming languages, a nice starting point for Oberon/Modula-2 is: http://people.inf.ethz.ch/wirth/Articles/

Wirth wrote many articles about the design of his programming languages, a nice starting point for Oberon/Modula-2 is: http://people.inf.ethz.ch/wirth/Articles/Modula-Oberon-June.pdf http://people.inf.ethz.ch/wirth/Articles/Modula-Oberon-June....