diff --git a/Projects/bachelor/Literature.md b/Projects/bachelor/Literature.md
index f5e1e6e..76fb612 100644
--- a/Projects/bachelor/Literature.md
+++ b/Projects/bachelor/Literature.md
@@ -3,5 +3,5 @@
 ## [Visual Programming Languages: A Survey (1997)](vpl.pdf)
 Visual Programming Languages -> VPLs
 
-## PYGMALION: A Creative Programming Environment
-
+## [PYGMALION: A Creative Programming Environment](https://worrydream.com/refs/Smith_DC_1975_-_Pygmalion.pdf)
+by David Canfield Smith, inventor of Icons and one of the pioneers of the modern GUI
\ No newline at end of file