add potential references and diagram

1 files changed, 29 insertions, 0 deletions

diff --git a/ref.bib b/ref.bib
index 0bedf56..5c9ee3b 100644
--- a/ref.bib
+++ b/ref.bib
@@ -436,6 +436,35 @@
   publisher    = {Informa UK Limited},
 }
 
+@Article{Douglas2010,
+  author       = {David M. Douglas},
+  date         = {2010-07},
+  journaltitle = {Science and Engineering Ethics},
+  title        = {The Social Disutility of Software Ownership},
+  doi          = {10.1007/s11948-010-9224-4},
+  issn         = {1471-5546},
+  number       = {3},
+  pages        = {485--502},
+  volume       = {17},
+  file         = {:Douglas2010 - The Social Disutility of Software Ownership.pdf:PDF},
+  publisher    = {Springer Science and Business Media LLC},
+}
+
+@Article{Pfaffenberger1999,
+  author       = {Bryan Pfaffenberger},
+  date         = {1999-09},
+  journaltitle = {Knowledge, Technology & Policy},
+  title        = {Open source software and software patents},
+  doi          = {10.1007/s12130-999-1029-x},
+  issn         = {1874-6314},
+  number       = {3},
+  pages        = {94--112},
+  subtitle     = {A constitutional perspective},
+  volume       = {12},
+  file         = {:Pfaffenberger1999 - Open Source Software and Software Patents.pdf:PDF},
+  publisher    = {Springer Science and Business Media LLC},
+}
+
 @Comment{jabref-meta: databaseType:biblatex;}
 
 @Comment{jabref-meta: fileDirectory-jonas-bastian:/home/jonas/Projects/RUC/LIB/copyleft;}