From the Debian package:

Source:
    http://users.teilar.gr/~g1951d/
Comment:
    Upstream has changed the font license since the packaged version was published.
Upstream-Contact:
    George Douros <g1951d@teilar.gr>

Files: *
Copyright:
    Copyright (C) 2007-2015 George Douros
License: Douros-Free-Font
    Fonts are free for any use; they may be opened, edited,
    modified, regenerated, packaged and redistributed.