AMG4PSBLAS is available from the web site
where contact points for further information can be also found.
The software is available under a modified BSD license, as specified in Appendix A; please note that some of the optional third party libraries may be licensed under a different and more stringent license, most notably the GPL, and this should be taken into account when treating derived works.
The library defines a version string with the constant

whose current value is 1.0.
Pasqua D’Ambra, IAC-CNR, IT;
Fabio Durastante, University of Pisa and IAC-CNR, IT;
Salvatore Filippone, University of Rome Tor-Vergata and IAC-CNR, IT;
When use the library, please cite the following:
@article{DDF2021,
author = {D’Ambra, Pasqua and Durastante, Fabio and Filippone, Salvatore},
title = {{{AMG Preconditioners for Linear Solvers towards Extreme Scale}},
journal = {arXiv e-preprints},
eprint = {2006.16147v3},
archivePrefix = {arXiv},
year={2021}
}
@Misc{psctoolkit-web-page,
author = {D’Ambra, Pasqua and Durastante, Fabio and Filippone, Salvatore},
title = {{PSCToolkit} {W}eb page},
url = {https://psctoolkit.github.io/},
howpublished = {\url{https://psctoolkit.github.io/}},
year = {2021}
}