Secondary Sources (including Intros, Conclusions, Summaries, Commentaries and Dictionaries)

##Naming practices

In 2015, most of the secondary sources in the Perseus P4 to P5 Text Migration List were given pdlrefwk names. Textgroup numbers are the VIAF number of the primary author (if there is one), or the first author in alphabetical order. Reasoning for these URNs is given in the "Notes" field of the spreadsheet.

##In Github

Secondary sources that have been manually confirmed as no longer under copyright can be found in PerseusDL/canonical-pdlrefwk.

Many of the secondary sources that have not yet been manually confirmed to be no longer under copyright are in a private repository called PerseusDL/canonical_pdlrefwk.

Should you wish to access a secondary source that's not currently in the public repository., please first figure out if the text is still under copyright, using the 70 year rule, and the P4 to P5 Text Migration List to resolve naming differences. Then, please submit an issue asking for it in the public repository. Please include your researched opinion of it's current copyright status.

If the text is currently in the protected repository, but is no longer under copyright, we'll transfer it to the public repository. If it's not yet online, we'll put it up in the appropriate repository, and make a note of when it can be released into the public repository, if applicable.

##Serving via CTS

This is an open question--whether and how to do this.

##Legacy data: a note for PerseusDL organization members and other editors

There was some data loss as part of the composite work separation with respect to secondary sources. At some point, this will need to be addressed.