https://elsevier.digitalcommonsdata.com/datasets/9md54fj9x7/1
Computing normal forms of nonseparable Hamiltonians by symbolic manipulation - Elsevier BV
Abstract Finding normal forms of nonintegrable Hamiltonians is a problem encountered in many branches of physics. In this article, a symbolic program is...
symbolic manipulationcomputingnormalforms
https://www.stephenwolfram.com/publications/smp-symbolic-manipulation-program/
SMP—A Symbolic Manipulation Program, by Stephen Wolfram, Chris A. Cole
Handbook for the SMP software program (precursor to Mathematica), with bibliographic information and links to online summary, primer, and full text
symbolic manipulationstephen wolframprogramchriscole