Group breakdown for the May paper.

This  paper is divided into sections  each of which
is titled in large bold face, 
with the exception of the introduction. 

 Everyone: Abstract and Introduction 

Group 1: First-Order Difference Equations

Group 2:  Dynamical Properties..

Group 3:  Fine structure

and

Practical Problems

Group 4:  Mathematical Curiosities 

Applications

Related Problems

Group 5:  Conclusions.