Not the origin but a decent definition can be found in http://modernperlbooks.com/books/modern_perl_2016/index.html http://modernperlbooks.com/books/modern_perl

Not the origin but a decent definition can be found in http://modernperlbooks.com/books/modern_perl_2016/index.html http://modernperlbooks.com/books/modern_perl_2016/index.html