The documents distributed here have been
self-archived as a means to ensure
timely dissemination of scholarly and technical work on a noncommercial basis (see
Open Access Initiative). Copyright and all rights
therein are maintained by the publishers and/or the authors, notwithstanding that they have
offered their works here electronically. It is understood that all persons copying this
information will adhere to the terms and constraints invoked by each author’s copyright.
Many electronic versions are draft preprints of published papers; the published versions should
be considered definitive. See also
Google Scholar.
You might be looking for the M57 dataset torrents. They are here.
You might also be looking for the AFF software (sources and binaries). They are here.