For an in-depth treatment of modularity, state, and side-effects, see "The Art of the Interpreter" by Guy Steele and Gerald Sussman: http://repository.readschem

For an in-depth treatment of modularity, state, and side-effects, see "The Art of the Interpreter" by Guy Steele and Gerald Sussman: http://repository.readscheme.org/ftp/papers/ai-lab-pubs/AIM-453.pdf http://repository.readscheme.org/ftp/papers/ai-lab-pubs/AIM-... (and the rest of the original Lambda papers: http://library.readscheme.org/page1.html http://library.readscheme.org/page1.html).