The generalized Laplace sequence

I wrote a Maple package to calculate generalized Laplace sequences as done in

• The variational bicomplex for hyperbolic second-order scalar partial differential equations in the plane, by Ian M. Anderson (homepage, article can be downloaded here),
• Geometric Aspects of Second Order Scalar Hyperbolic Partial Differential Equations in the Plane, Ph.D. thesis by M. Juras.

The package is written in Maple. You need the jets package to be able to use the package. Download the package and an example worksheet from here.