Here you can find several selected documents explaining the software LPL.

Short introduction to LPL
A document for persons wishing a quick overview of the basic elements of the LPL language.

Another introduction
For persons interested in Mathematics

History
Short overview of the history of LPL

Introduction in Modeling
Contains the Introduction to the book: "Mathematical Modeling and Optimization, An Essay for the Design of Computer-Based Modeling Tools, Series on: Applied Optimization, Volume 31, Kluwer Academic Publishers, Dordrecht ."

Modeling
Theory of modeling languages : a technical paper.

Modeling
Theory of modeling languages : a more detailed version of the technical paper.

Theory of Mathematical Indexing
Theoretical paper on indexing theory