Sketchpad (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sketchpad" in Czech language version.

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britannica.com

PYFER, James. Sketchpad [online]. Encyclopædia Britannica [cit. 2020-12-21]. Dostupné online. (anglicky)

SUTHERLAND, Ivan Edward; BLACKWELL, Alan; RODDEN, Kerry. Sketchpad: A man-machine graphical communication system. Technical report [online]. Univerzita v Cambridgi, 2003-09 [cit. 2020-12-21]. Čís. 574. Dostupné online. ISSN 1476-2986. (anglicky)

Ivan Sutherland - Father of Computer Graphics. i-programmer.info [online]. 2019-02-21 [cit. 2020-12-21]. Dostupné online. (anglicky)

POTÁČEK, Jiří. světelné pero [online]. Databáze Národní knihovny ČR [cit. 2020-12-21]. Dostupné online.

SUTHERLAND, Ivan E. Sketchpad: A man-machine graphical communication system [online]. aci.com.pl, 2005-04-22 [cit. 2020-12-21]. Dostupné v archivu pořízeném dne 2005-04-22. (anglicky)
Sketchpad [online]. history-computer.com [cit. 2020-12-21]. Dostupné v archivu pořízeném dne 2020-09-09. (anglicky)

SUTHERLAND, Ivan Edward; BLACKWELL, Alan; RODDEN, Kerry. Sketchpad: A man-machine graphical communication system. Technical report [online]. Univerzita v Cambridgi, 2003-09 [cit. 2020-12-21]. Čís. 574. Dostupné online. ISSN 1476-2986. (anglicky)