@book{Stallman_2002,
 author = {Stallman, Richard M.},
 year = {2002},
 title = {Free Software, Free Society: Selected Essays of Richard M. Stallman},
 url = {https://www.gnu.org/philosophy/fsfs/rms-essays.pdf},
 address = {Boston, Massachusetts},
 urldate = {2015-05-16},
 publisher = {{GNU Press}}
}