These two files represent what I have been learning about object-oriented
programming in Perl.  The basis for my education is comprised of the following
sources:

- "Intermediate Perl" by Randal L. Schwartz, brian d foy, Tom Phoenix
  https://www.oreilly.com/library/view/intermediate-perl/0596102062/

- "Beginning Perl" by Simon Cozens
  https://www.perl.org/books/beginning-perl/

- "Beginning Perl" by Curtis Poe
  https://www.wiley.com/en-us/Beginning+Perl-p-9781118235638

This module is my attempt of converting the examples given Chapter 4
("Introduction to References") in "Intermediate Perl" from a procedural
implementation to an object-oriented one.