Cathode-Ray Tube Amusement Device (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cathode-Ray Tube Amusement Device" in Polish language version.

refsWebsite

Global rank Polish rank

1pong-story.com

low place

low place

216^th place

306^th place

about.com

classicgames.about.com

D.S. Cohen: Cathode-Ray Tube Amusement Device – The First Electronic Game. about.com. [dostęp 2013-09-25]. (ang.).

pong-story.com

Patent USA nr 2,455,992, USPTO, 14 grudnia 1948 (ang.).