The files starting "00001-sbml", "00004-sbml", and "01103-sbml" were downloaded
(and/or adapted) from

    The SBML Test Suite Database
    http://sbml.org/Facilities/Database/

For copyright information, please see

    https://github.com/sbmlteam/sbml-test-suite/blob/master/LICENSE.html


The file HodgkinHuxley.xml was downloaded from

    BioModels Database: A Database of Annotated Published Models.

For copyright information, please see

    https://www.ebi.ac.uk/biomodels/termsofuse
