How to Access the Source Code of the Columnar-Basalt (COMBA) Model for Secondary Development?

Hi,
I would like to reference the Columnar-Basalt (COMBA) Model for the secondary development of a constitutive model, but I couldn’t find the source code for this model in the PluginFiles folder. Does anyone know if the source code for this model is open source? If it is, could you please share a copy with me?
Thank you in advance!
JLUJYP

My email is jlujyp@gmail.com.

Unfortunately, this model is not open source to the public. The publication for this model can be found at https://doi.org/10.1061/(ASCE)GM.1943-5622.0001646.
Examples are available in the documentation.